I'm 6'0", 225lbs (unlike these skinny guys on here) and fit comfortably. My seat is all the way back minus .5" for a little tilt. I would assume comfort in the 986 depends on your measurements from your feet to your butt and your butt to your head. I swear my father-in-law's legs are one and a half feet long and his body is three feet long, a real circus side show, I digress.
You are correct in your assumption that with the seat all the way back in a Cayman that the seat will also tilt back. Sounds like a couple of test drives are in your future...sounds like a great excuse for me also.