Lots of fit and trial and error to get all to fit. Still not entirely done. Some of the things done to make it work..
-clean epoxy blobs off of inside rib at spar
open up slots in fuselage for spar pass through; width and height
-sand forward inside of L HS to allow full seating, will need to add some flox to a lousy hard point job from factory. Took off about 1/16" at front so that HS would have clearance at fwd edge
enlarge/enlongate holes in L spar slightly; was short about 1/32" clearance no matter how I fiddled and all the other steps above
ground 2 hardware store 3/8" bolts at end to create a pin that could be used to center and set spar holes.
Still don't have hardware from Arion so didn't have the final AN6-16A bolts to snug up
Still need to open up L HS holes slightly to allow bolts with threads to fit.
Will use laser level to set both HS's before drilling AOI holes