That snookers the wheels so...
Well, my first thought would be to buy a portable battery powered pump and walk the bits down to the water in stages (or on a sack truck with balloon wheels) and then inflate the boat. It's a lot of walking/work though...
My 2.7m has an airdeck (which weighs next to nothing) and I certainly wouldn't want to be carrying her anywhere. Removing the floor might not solve the problem anyway.
FYI, the floor provides rigidity for the boat, hold the keel in place (providing some directional control) and stops you falling through the single skinned floor. Not using it would (IMO) be an epic disaster