I'll always try to do 2nd day air. More expensive but cuts down on damage for me! I find replacement parts always have something wrong with them. Glad to hear you squeaked by.

The RCS 180se will fit fine in mine. Although I found the marks on the firewall to be around a 1/2" low. The original marks made the cowl "droop" down excessively. No other problems as yet.
One minor thing... The covering on the wings are scratched from the factory heat iron on all cap strips. It would have helped to use a sock.

This is one pretty awesome plane.