Mercury black twin motors - I figure close to $10K in annual ownership cost - maintenance of $2,500, insurance $1,500, budget $6K for significant repairs. No idea on a mercury racing 700hp and below motors, but would figure somewhere between 50% and 100% more. These are more of a drop it off at the service place numbers. I like outboards because I generally don't have to drop it off at a service place and can do all my own work. The inboards are harder to work on and the technician's charge an arm and leg. The outdrives are really more of a separate component that has it's own maintenance requirements (bellows, gimbal ring, corrosion, etc).

Advise against trying to save money by getting something older and more used. Generally speaking, it will costs 50%+ of purchase price to take a boat from average condition to above average condition. It will cost 50-100+% of purchase price to take a boat from below average condition to above average condition. I just reveal this fact to let you know there are very few free lunches in the sport. Countless threads on this forum where people bought project or running projects only to lose numerous seasons of boating and end up financially in a worse boat had they of just bought something in good condition.

Maldives is southwest of Sri Lanka and India, about 470 miles from the Asian continent's mainland.
I'd look around that area to see who could possible service this boat and what the parts availability is in that area. I'd bet the boat is sitting on land waiting for parts/service a lot longer than it is actually running around at 100 mph.
Costs quoted here are completely irrelevant to that area.

Have you ever been divorced? it`s a bout as frustrating and expensive as that .
Have fun!

$1000/HR not including fuel.

That's my guess on what average ownership costs on a 100mph boat probably average.

Aside from significant rebuild costs, it's all the other nonsense - for example, just this Sunday I went over to the garage, pulled the broken AC out, 4 new indicator cables, 2 oil filters, 2 fuel filters, 22 quarts of oil, 7 quarts of drive lube, one Water pump being rebuilt by Hardin, 2 water pump rebuild kits, have to have a headliner guy come this winter.

And that's the little stuff. Still need to think about gauges the next year or two, GPS is broken, Speedometer is broken, need to upgrade lights and speakers and stereo, yada, yada, yada.

Drive rebuilds, blower rebuilds, exhaust failures, motor rebuilds (or failures), and we are all in America where you order this stuff and it comes in a couple days.


All this said, it's worth the headache most of the time......

Valid point ^^^.
You may want to find out about your nearest dealer. Where can you service a boat with custom engines, hand built from America? Answer…..America. 🙂 If you buy Mercury Racing Engines, you’ll need a Merc Racing Dealer to maintain them. Is there one in the Maldives? I’m in Thailand and the closest Merc Racing Dealer to me is in Singapore!! Standard Mercury engines up to the 496HO are probably a lot easier but that counts out 99 % of Cigarettes and 100 mph is nowhere in sight.

Have you considered outboards? If the top speed is important, maybe a cat.

RR

I would envision that boating in your location would be spectacular but with the type of boat you want be fraught with maintenance difficulties.
Take a look around at the other boats where you are . In terms of privately owned ones is there a commonality in max size and style/use ? Are there more sport fishers than cruisers ? Are there many US brands recognizable ? A lot of diesel compared to gas ? Who do these people get to work on their boats and could they confidently work on one like you want ?
If there are plenty of people there who could afford a boat like you want but there aren't any , or precious few , there may be a reason for it .

Don’t forget you also have no idea what issues you are buying. Friend bought a 30 outlaw last spring. Had it surveyed. All was good. Initial “oil change” estimate was 10-12k including gimble rings and a few other obvious things. It grew to include an engine rebuild. He bought from a legitimate broker that sells a lot of boats and had a survey. I think he is around 25k into it and has only been able to use it a month or so. One problem fixed brought out another.

Doesn't sound like it's a good idea then.

Confucius say, "If not bought wisely, could be money pit" GLASSHOPPA......

looks like i could maybe buy your boat for a good price with this long to do list?