I could make one,... but the boring bar for the mill is missing in action:nono:
As of right now I would have no way making the large holes for the check valve. The drill bit set I have only goes up to 1"

, and you really have to use a boring bar for this. Let me search around some more and see if I can come up with something.
I have pics. of the one I made in my build thread. (all pics are on the first page

)
Try sending sethron71 another PM, let us know if he gets back to you. I inquired about one on 05-28-2008 and he got back to me with in 1-2 days