Cheer's i'll consider Bacci if nowt turns in the next week or so.If no joy then Dan Bacci, (he's a top bloke and won the Scorpion reloader) has a few
http://www.baccipaintball.com/parts/semi/autococker/pneumatics/regulators-lpr.html
Cheer's,i'll see how this one works out first,but when you get time to have a rummage feel free to let me know what you have up for grabs.i'll have a rummage if you are after a specific one, got loads! from nexus dart to palmers etc