Any Pics? The great thing about wood is just about any repair can reasonably be done short of damage from burns, lol. If the top layer is genuine teak and holly, and it is still in good condition like you say, I think it can be saved... However comma... it takes some tools and woodworking skills. The easy part laminating the top layer back onto a new substrate of solid marine ply with epoxy. The hard part is getting that top layer off without damage and at a consistent thickness. A thickness planer is your friend here, the issue is most home shop thickness planers are between 12 and 14 inches wide, and I'm fairly certain your floor panels will be wider than that save a few small pieces and trim. If you know of a local wood-shop/cabinet maker I would inquire to see if they have a large thickness planer, wide enough to take your biggest floor panel through. If such a tool exists in your general area you could plane off the old ply underside until you end up with the last 1/4" (3/16" maybe?) of teak/holly top ply and epoxy that down onto fresh marine plywood sheets. I wouldn't even cut the plywood, I would arrange the teak/holly flooring on full sheets to maximize material, epoxy, lay over a plastic sheet, then lay a few heavy sheets of MDF on top for clamping force; rough cut the cured sheets with a jig saw then use a router with a trim bit to follow the original lines. Epoxy the back sides & edges. $200 to $300 in new marine ply and some epoxy is probably way less coin than new floors all together, Just my .02