I would guess the best prop for that craft would be around a 21p, my 898 ran fairly well with it. Now onto wood rot. If its soft, my assumption is the stringers will need attention as well. The job is labor intensive as many can testify to, but as others have done, it is a better feeling knowing what's under your feet. I guess if I were going to farm it out, I would want to check progress to insure its done well. Mine had a newer floor, but rotten stringers. Could not tell, floor felt solid. My best advice, buy it at a reasonable price, enjoy it for a season, then decide if the cvx18 is worth the effort.