Are you sure you will give up anything, tone wise, with the Reidmar + NeoLine 210 setup? I have used the Gorm 410 on stage a few times, and in my experience and opinion, it is "less than the sum of its parts"... Cabinet volume per driver is too small, and it sounds fairly "boxy" ("raspy" mids) and is light in the lows.
Reidmar is not too different from the combo amp, but the NeoLine sound MUCH better than the Gorm enclosure, IME. I would do that swap in a heartbeat!
As for Gorm local market value, I have no clue. They go for 250 - 400 USD in Sweden, I think. Drome is more popular here, it seems.