You are the point now where you might be able to shim the trans mount. Hard to tell from the pics, but it looks like the motor is sitting a little low in the back. My problem was i could not shim the rear trans mount as the trans started hitting the floor before i could get the neccessary 1/2 inch shim in.
The keisler by itself is known to have problems, and sometimes so do the schumacher mounts...together they just compound the problem. I did have a hemi with the schumacher mounts and a 833 4 speed and that was fine. Only problem i had with that setup was the dipstick tube did not clear the mount, and had to be modified and the dipstick remarked...not a big deal.
BTW...engine/car looks GREAT!