If your flooring is the same teak and holly laminated wood veneer that was on our 2013 RT-27, it can be torn out without damage to the fiberglass underneath. The flooring is glued down and tearing it out requires leverage (think crowbar, used gently) and strength. The process will rip up the original flooring, so if you need to make a pattern, do it beforehand. The factory replaced our cabin flooring during our first year or so of ownership, because it wasn't positioned where it should be. I watched. It was messy. I was happy not to be doing it myself.
As for replacement, check with the factory. The factory may not stock it (depending on the age of your boat), but they might be able to make you a new one if you can provide the pattern. I ended up doing that with the teak/holly on the underside of the cockpit overhang on our boat, which had weathered too badly to be refinished (especially since it would have to be refinished upside down). I sent the pattern to Richard in the parts department, and from that, the factory cut me a new one. Pulling off the old one was challenging, but it was a smaller and maybe a bit more manageable because of that than the flooring in the cabin.
I think the holly/teak veneer can be purchased as a raw material by the sheet, as well. You'll have to shop around for a supplier. That might be the most cost-effective way to go depending on the available sheet sizes and whether you want to take on making the cut-out yourself.
Good luck!
Gini