i have a jbl with 95" wheelbase. i'm just short of 6'2" about 20 yrs ago and i can just barely touch the front bulkhead with the ball of my foot if i stretch and point my foot. with my ass all the way back in the seat i would probably have a hard time touching.
http://www.jblmotor.com/
if you're interested in purchasing one pm me, it would be the gray one on the right.