I sent my R1 back to Remington for its free first year servicing. They sent me the free shipping label, and I had the pistol back in six days delivered to my door. Mine required nothing other than the factory inspection and cleaning; although they found a loose grip bushing and replaced it.
They will also do the very same with any warranty repair for the life of the original owner. If I were you, I would call Remington and ask the questions you posted here. Request the UPS over-night shipping label and send it in.
Why jerk around with it when the turn around is so quick and free to boot? Let them make it right and pleasing to you the owner.