Skool, does the floor have to come up that much?? Seems like a lot. I was thinking the floor might have to go up as far as the bottom of where the saddle tanks sit, but I don't think that is 6". I might rethink my belly tank idea. :'( Then again, I was thinking I'd be happy with a fourty gallon tank. Maybe I wont have to go up as far... :-/h