Good idea replacing the fuel pump right now. If I do that, I don't think it's worth cutting the floor for an access port. Years down the road when it needs another pump I'll just cut the hole then. Or more likely, the next owner will do it.
I'm also looking to put in flush mount wheel chocks like this:
On the left side of the garage I want to make another trap door with a mesh grate or something for a shower. I just want the water to pass straight through the bottom, no tub or catch tank. Edit: I just had an idea. My XR650R has a one way rubber boot on the bottom of the airbox. Some quick searching brought me to one for a 4" drain, in Australia.
Let's say I make a square for the shower on the left side of the garage like I mentioned. The bottom piece of plywood stays, but the foam, top plywood and vinyl flooring come out as a plug when it's time to setup the shower. Seal the sides with epoxy or something. Permanent drain pan that I just remove a trap door floor plug to expose. Put the one way drain in the bottom. Thoughts?