Its not the sum that makes me cringe. Its whether that money is better spent on another boat that won't have issues. Er, will have fewer issues. Or at least issues that don't require tearing up the deck and making a new one.
When you look at boats for sale you'll find there's a general market price for each model - some variance for options and level of maintenance but there's still a general range.
I don't believe that it is possible to obtain a well-found boat for less than market value unless the boat fairy should happen to drop one in your lap one night (and last I heard he wasn't in the business of doing that anymore
My personal belief is that the cheapest way to get a boat in good condition is to buy one that has been reasonably well-equipped and maintained and the expensive way is to buy one in poor condition and refit the vessel yourself. But remember - it is only money and we go through this life but once !
Good luck !