This isn't really an autococker, but it is made a lot like one. I'm trying to convert it into a pump but I'm not sure what year it is (if it really was an autococker). Here is the link for the picture.
just when you buy a pump kit, ask for the mini version. it has an adapter on the front to still allow air into the marker since on a mini the air enters through the bottom of the front block rather than the bottom of the body.
And they do cost a little more,
Well, you can see if JoshGrrrr, or another Air-Smith will tap the front-block for 9/16-24 (A normal 2k front-block), or try and find someone to make a kit for it.
There is one other thing you might be able to do. That is put a normal Spyder VA on it, then screw a trilogy pump kit into where the LPC went on the VA (There the same thread size). You may have to make a custom pump arm, but I don't think you will.