I think that this subject has come up a few times on RAS so it may pay to search the archives. Here is one https://groups.google.com/forum/#!searchin/rec.aviation.soaring/tall$20pilot%7Csort:date/rec.aviation.soaring/ZD-7HqoBYTQ/l0SLOYEACAAJ.

The one glider family that I know fits taller pilots is the DG line. Several DG's are for sale right now on the http://glidersource.com web site. Also, I have a tall pilot friend that fits comfortably in his Schleicher ASW-24 with the seat back removed, which I assume means that other ASW, ASH, etc, gliders would fit the bill.

Best of luck. Get back in the air!

John OHM Ω