Available molds being:
1.75u: Deliver, Dispatch
1.5u: Shipment, Track, Cancel, Control
1.25u: Ship, Parcel, Pack, Send, Ctrl
I vote Dispatch on the R2 1.75u, Send on the R3 1.25u, and Return on the R3 1.5u.
I know you didn't list that last one, but hear me out; the Return mold already exists in that size and row (it's in GMK DMG) and it better matches your base kit.
Thanks for hearing me out, I wasn't expecting any kind of response. I really appreciate it.