Hi guys. Small adjustments in the wing inc can be done by sanding down the donuts that the wing pins fit into, and building up the other side with some glue. As the aileron trim is small it will be a small adjustment.
Yes the stab alignment will also impact it. In this case I expect the stab alignment for straight KE may result in increased ail trim as I expect I may need to reduce the incidence on the right stab.
Either way its small adjustments.