Your description sounds exactly right on the setup. As for filling with it nose high to let the air out, I suppose that will work.

I have the fittings you need, 4 of them actually and 4 of the W742 quick disconnects too if you want them. Heck even the 3/4" T fitting and a bag of hose clamps. (T or Y - either should work). Had offered these up on the Christmas giving list but no takers.

PM me where you want them to go!