On general terms, your willingness to invest in a custom tall saddle, lower pegs and bar risers will serve to increase, however modestly, the number of motorcycles that can be made to fit you. The Triumph Tiger 800 and the Ducati Multistrada are deceiving. They only look tall and roomy. I found the ergos of both to be rather cramped, esp. in consideration of the bikes' intended missions. And I'm a bit less tall and certainly not as well fed as you are. The ergos of the Yamaha Tenere are mildly better in comparison, but on net they really weren't that impressive to me, either. We all have different fit requirements. I was reasonably comfortable on the GSA and KTM's big ADV. Unfortunately for me, these two choices are real budget busters.