Can someone give me a ball park n rigging a new hull,, say 525 mercs, , out drives and interior

From all the details you've provided, I'd guess anywhere from $100 to about a zillion dollars. I mean are we ever really done rigging!

In all seriousness, you really haven't provided anywhere near enough detail to get a realistic guess.

V hull? Cat? Cabin? No? Much more needed.


Cat Hull w twins and zero frills is 300hrs labor minimum.

The boat hull is a 50' foot Cat, it was owned by a company called Airbourne Marine, Is pretty bare bones.

525's might get it to go 60mph. Those are huge boats. Its transom is probably cut for SSM6's.
You'd be looking at 200k+ to do it right.