I'm doing what I'd consider a "basic" deck replacement (on top of the transom, but I'll leave those costs out). On my 19-1, I'd say I used 3 sheets of half inch marine ply, 1.5-2 rolls of 1708 (I did two layers on the top of the deck, one under. Probably 5-6 gallons of epoxy. A couple of gallons of bonding putty. Call it $500 worth of two part foam. Figure in a few hundred dollars in random materials (rollers, paint buckets, etc). If I had to ballpark what I have in the deck only, I'd say $3k+ without painting anything, and I'm not putting the casting deck back in. Most guys will do a fuel tank when they're in there, it would be a shame to get a deck in and realize you should have done a transom, which is easier done from the inside than the outside... I guess what I'm saying is its not a $1000 fix, probably closer to a $5,000 fix (for the deck), and can easily be a $10,000+ fix if you want it to be.