The robart incidence meter will work great for you so long as the top of the fuselage is perfectly level too.

No worries about the stab holes. Just remember to take your time and get it the tips level with the top of the fuselage and set the incedence at 0 degree's. Again use balsa shims to help get it into position (Zap it with CA) and then lock everything in with a batch of epoxy.

Good deal with the gear setup. It'll keep the airframe lighter.

Good luck....