I know a lot of tall riders have trouble finding long enough bikes.
I have a XL Turner 5 Spot frameset for sell- see ad under 'framesets' in classified. It has 125mm (5 inch) rear travel with Fox DHX Air5.0 shock. 24.8 inch top tube. Good for a tall rider. I am tall and lean at 188 lbs.
Turners are great bikes- I just built up my fourth- and made in USA.
$ 450