If you ever run into a problem like that, it is an easy fix.

The stab incidence is very hard to change. Usually, you'll have a flat plate that is built into the fuse and that's where the stab will mount. Not easy to change without major surgery to the fuse.

But, the alignment/incidence of the wing is easy to change. Simply hog out the holes in the side of the fuse so that the alignment pins from the wing can move up and down. Cut some 1" round plugs of lite ply and drill a hole in the center to fit snugly over the wing alignment pins. Now block up the tail and get the fuse level so that stab is sitting at 0 degrees. Slap the incidence meter on the wing and adjust it up or down until it's set where you want. Hold it in place and use some thick CA to secure your new lite ply donuts to the side of the fuse. Maybe wax the wing alignment pins or put some KY jelly on them to prevent gluing them inside the ply donuts.

Easy fix.