since we havent heard back from Dave..I assume he is 1,in litigation and cant talk about it. 2,decided to part the bird out ,pay off the loan and move on,or is attempting the repair on his own and is realizing how much work it was...The question that came to my mind is the timing of the discovery of corroision so severe that rivets are failing in tension from structural overload.He states the ppi and purchase was done 18 months prior to discovery of corrosion by current shop doing annual.That was in april but presupposes the last annual inspection was done at that time..or that c model would have been seriously out of annual 18 months later when the corrosion was found.If the last annual was sooner..say 12 months after he purchased the c..who did it?My question was when was the last annual done..assuming this c has been inspected every 12 months ,I do not understand how it got this bad without a logbook entry..hope it turned out well and I believe the last ap/IA is doing a carpet dance at his local flight standards office..kpc