Congrats on your recent purchase! Those bodies by Planet Eclipse are surely gorgeous in every way.
The ram housing on those bodies are very difficult to find as they're very unique. A while back, there was someone who produced those ram housing on PbNation and CustomCockers forum, but unfortunately I do not recall the person's username, hopefully someone here on PbNation can provide information on that person or where to acquire that replacement housing. However, it's not the end of the world if you can not find a replacement (If that is in fact the source of the problem) since standard 2k+ cocker front blocks are applicable on those factory bodies. Yes you'll lose the fancy front block that houses the LPR and 3-way (or solenoid), but it's a great replacement if all fails. Another way to tackle this to see if that is the problem is to again use a standard front block to see if the problem is still present.
Do you so happen to have all factory parts on the PE Factory 'cocker? If you have the original eclipse ram then those are rebuildable. They are quite simple to rebuild since those ram bodies are not loctited together. They literally only have 3 seals and two bumpers inside of the ram. You can find the replacement seal kit here: http://paintballgateway.com/beauevmarams.html
The pump arm that is connected to the ram shaft are usually loctited, all proper pump arms should be. If you can acquire a torch, then you can easily have the pump arm separated from the ram shaft. The trick is usually heat to break loctite. If you wish to stay with the Planet Eclipse style ram then look into Belsales as they are still in production. They made all of Planet Eclipse's pneumatic components in the past, the pump arm for the body is just a standard 2k+ pump arm, I can confirm this since I too have a factory eclipse body and have tried it. Paintball Gateway is a great source for all your 'cocker replacement and aftermarket parts: http://paintballgateway.com/wgpaupnra.html
The Black Magic regulator have two inlet ports and does not matter which side you wish use as the plug or the fitting. It's great they made it that way as those fittings are stubborn at times to where it'll face when the regulator is completely screwed in.