Fixing an uneven wing and stab?
If the vertical and horizontal stabs are perpendicular to each other I would sand the wing saddle so the wing and stab are in line.
I had this happen to one of the Bingos that I built (fuselage was twisted) it was much easier to sand the wing saddle that remove the twist and it turned out to be the best flying Bingo that I have built (three two for me and one for a Friend).