Hi Andy, We made a couple of mods to the bunk bases and floor, and they work really well. We cut both the bunk base infill boards across from side to side level with the bulkhead at the front of the rearmost compartment (the one with the impellor in it). We attached a couple of battens either side of the bulkhead, and level with the top to make a wider plateform for the infill boards to sit on.
We then cut the lower floor board exactly in half front to back, through the finger hole. All this makes access really easy, as we now just fold the matress forward, lift the short piece of infill board, throw whatever is in the locker across to the other side, and lift half the floor out.
Moonbeam