After incredible time spent sanding/re-applying glass/resin/micro, and sanding some more, the fuselage is looking pretty close after priming.

The foam sandwich has 3 oz. (per sq. yard) fiberglass on the inside with 2024T3 hardpoints routed into the foam, covered with glass then bonded with 3M 2216 to fuselage with the hardpoints riveted to fuselage members.  The outside of the foam has a minimum of 3 layers of the 3 ox/yd glass cloth with two more 6 oz. layers at all the corners to tie it all together solidly.  A dry-ish micro was placed over all of this and blended together with LOTS of sanding and re-applying the mcro.  The glass was covered with epoxy, not polyester (which melts foam); it was not vacuum bagged but rather excess resin was squeegeed off as much as possible, then soaked up with paper towels, with copious sanding on what remained after curing.