we go camping & riding quite a bit. Here is my $.02 experience.
1) you aren't going to be able to put the bike on the back of a TT, or with that heavy a bike on the back of a 5'r either. a 300lb bike on the back of a 5'er possibly but not 800lbs
2) A long bed is a BIG advantage over a std box. I have a 3/4 ton std bed and need to turn my KTM400 sideways in the bed.
3) with that weight and trailer tongue weight I suspect you are definitely into 3/4 or 1 ton territory.
4) In a 4x4 the bed I would NOT ever try getting a sport bike in the back. Even getting my KTM in the bed is usually a 2 person job for safety.
5) In my case I have 1400lb tongue weight and with bike in the bed and riding gear I am right at my denali 3/4ton GVW.
So...... take a look at some of the outback toyhaulers with the side entry ramp. they may fit your need nicely, still give reasonable inside room and with the side entry don't take as much space out of the living area.
