Love to go but... I'll be ready to be back in the TW saddle mid July.
Looks like a fairly relaxing ride that most who join you will enjoy. And if no one joins you, then you'll enjoy it on your own. I've been on all of this, with the exception of the tar highways on the TW. Since you are riding this route on a Monday, you won't have heavy cage traffic to deal with, so tooling down Banks-Lowman Hwy and Hwy 55 from Banks to HSB should be fun. Good twisties, trees and riding next to the river(s). Plus, you are going mostly downhill so this should make it easier for the TW. Wish I could go boo hoo!
Can you save the Kirkham Ridge trail ride for when I get back in July. I'd love to go, but don't want to do it by myself.
Good luck and enjoy your HSB-GV and back ride.