That will only work with a CCM frame and a pump arm that's been drilled and tapped for an autotrigger. As for the second question, there are two main groups of autocockers, pre-2k and 2k+. Any standard 2k+ parts will fit standard 2k+ bodies. However, there are also what are called "mini" bodies, which have removed material at the front so must use different front blocks than standard bodies. There are also p-block bodies, which take different back blocks and bolts.
What you have is a standard 2k+ body, so anything you'll want to throw on there will need to be compatible with those kinds of bodies. All detents will work on all bodies, all frames work on the bodies, all LPRs, and 3-ways will fit on all the front blocks as well (but that's not really an issue for you with a pump). Internals are the same across the years (same valve, springs, hammer). Since you have a 2k4 prostock, that means the feedneck is non-removable unfortunately, so you're stuck with the stovepipe unless you want to bust out a dremel and attempt the ego feedneck mod.
Lastly, just in case you haven't already figured it out, but you'll need to be able to underbore whatever paint you shoot.
Edited by andrewthewookie, 12 March 2014 - 09:01 PM.