I see everything got sorted out and that you got a really cool looking boat.
Congrats!
As Charlie said, take your time to think about your boat and how you want it to develop.
Ive had mine for a year now and the first idea was to run it with a small block. Today thats not valid anymore.
Its going to have a big block instead.
This is just one example of changes I have done.
Make a detailed list for your self about how your MSV will be all that you want. Your dream boat. Engine, drive, steering, interior, tabs, gauges. You get the point, detailed list.
Then you can start to calculate on the costs and see if you can make it or if you have to take a slightly different route.
If you want help, thougts, ideas from others publish the list on here. There is a lot of experience out there with people that already has tryed the stuff you will list.
Good luck with your project!