> Is there a way to transfer a preset from one unit to another without manually recreating it?
Currently no. The topic was discussed multiple times but unfortunately it's not implemented. Theoretically you can use an eeprom reader to read the data out.
> However, I just ordered a new unit to be my dedicated mobile unit.
I have the same problem --- now the border is reopen and I can travel from time to time. For mobile use I made a simple program which is modeled after ADI-2 DAC's pipeline. All user facing DSPs (EQ, Loudness, B/T, etc) are available. I even recreated the Spectral Analyzer screen myself. So now I can travel without bringing the unit at all...