Harley, How much ground clearance do you have with the 22x8? I will have the same problem on mine, 3" clearance taxing and 1.5" when level. I was planning to add some supports to the landing gear (crossed spring and cable) so they would not spread much.
If I cannot live with the 22" prop, I don't want to go to a 10 pitch, so I was thinking about a Xoar Laminated 3 Blade 20x8 prop if I can get them.
http://www.gravesrc.com/XOAR_LAMINAT...xor2080l3b.htm