After a ton of review of plans, prints, & completed assemblies, I've determined to complete the following service bulletins on the used wing and empennage kits that I bought. I think it makes sense to do them now so that I don't have roll them into the annual inspection and then potentially have to ground and do rework on a flying and painted airplane.

SB14-01-31Horizontal Stabilizer Cracks
SB14-02-05 Cracks in Elevator Spar
SB16-03-28 Cracking of wing aft spar web at the inboard aileron hinge bracket attach rivets.
SB06-02-23 Safetying of standard and flop-type fuel pickup tubes (probably already done- need to check)

Everything else is just confirming that standard practices have been followed, the right hardware used etc. I'll check all that stuff but don't expect any problems.