I'm 6'3" and have never found the leg room or head room in my 80 to be an issue, even on long trips. I do not have Land Tank's seat mod but I did take out that little foot rest.
Removing the footrest does make it (legroom) feel a whole lot roomier. That's the way I had it before I got the Husky mats. But the Husky mats has those preformed footrests there, so I just put them back in.