I'm thinking a simple hose clamp around the filter then some safety wire around the clamp...

Well I got a deal on the 951 System, and I can always down the road upgrade the cooler element if this doesn't provide enough heat dissapation, but I think it will do the trick nicely. I plan on flushing it out thoroughly before I install it. I would really like to find the shroud that forces air right through the cooler like I saw in the catalog.
New gasket and o-rings are in the mail. Maybe I will take some pics and do a write up if I remember when I go to install it.

You will need to fab a shroud. Since the cooler must be mounted differently from the 951 installation (rememeber the 951 nose is different) I don't believe that shroud will work. Still ducting is pretty easy to fab up.