I need foam. When i ripped the floor out, the foam blocks were waterlogged and weighed about 75 lbs each. I ripped them out and put a temporary alternative in place (dont ask). Now im ready to give her a legit foam subfloor and it seems its going to cost me no less than 500 bucks. Its a small boat. Seems a little excessive when she floats just fine now. Any ideas? Or know a place to have it done fairly cheap?