Post only one name of a vehicle you want for the 3 3/4" collection that's different from everyone else's that is listed below.
Your post should have one craft's name, and if need be it's source or description.
REPUBLIC CRUISER RADIANT 7, from TPM with attachable cannons for CW playability.
I'd make it under-sized, maybe Royal Starship sized, and pack in the Republic Captain and Lieutenant.
Removeable cannons with firing missiles and a detaching salon pod would probably work for play features. Maybe a launch spot for a mini-rig vehicle (class 1 size with figure - but no more speederbikes, please!)