I have two options, both of which I'm considering:
A.) 3.7 Merlin which has already been CCU'd to a C8R
or
B.) The '21 IAE Argo MPUV, which is currently The Flying Thumb (aka 85X)
I did this because these for a while have been my favorite/most useful small ships in the game, and I was hesitant of putting very much credit into non-meltable ships. C8R for the obvious reason of having the medbed and 85X I've found extremely helpful for it's ability to be spawned at a vehicle outputs, AND carry two people outta there, AND then land/fit in the hold a surprisingly high number of larger ships. But seeing as both are easily accessible with aUEC it sorta doesn't much matter, so I'm leaning toward turning the C8R (due to its higher starting value) into the F7A.