RE: difficult incidence
I've decided to cut some new wing saddles to bring down the leading edge and install extra wing bolt retaining blocks near the dowel location by the F2 bulkhead.
Last night I used sheets of paper that were 0.004 thousandths thick to shim down the leading edge. I was able to achieve 1-/3/4 degrees of positive incidence after using a whopping 0.084" of shims on the starboard side and 0.028" of shims on the port side.
I like my idea since, although it's not less work, it negates having to sand down the rear saddles so deeply. I'll glue the lite-ply saddles on the inside and sand to achieve the correct incidence, then fill with either EpoxoLite or epoxy and microballoons. The dowels will remain for alignment.