Setting it up as a auto-cocking gun is no small matter, but I'm sure it would be a fun project! Externally it looks great. I'd certainly do the trade, regardless of future plans for the PGP2. Feed gate and fassst changer looks like only upgrades on there. Check and see how the hammer and valve assembly looks, but changes are they're fine.
Shoot Dan at baccipaintball.com a message and see if he has any guides or parts for making your stroker-like conversion. And search the custom gun/custom sheridan threads and pm owners of auto-cocking sheridans to see if they can help.
Last edited by toymachine; 12-16-2012 at 08:43 PM.