I've put together a set of Scubapro regs from stuff that I no longer use.
It's a Mk20 first stage with an R390 second stage and R190 Octopus. It comes with a Uwatec SPG. Stick your BCD hose on it and you've got an ideal recreational or travel setup:
The first stage is O2 clean and until very recently I was using it as a deco reg. The R390 was my twinset backup reg until about a fortnight ago. I can't speak for the provenance of the octopus reg but it breathes just fine.
£125 including UK postage (I can put a DIN wheel on it for an extra tenner)