So it was too close to run a stock snubber plate even before you ran the Hothchkis Springs?
Im running a stock k-member, DS motor mount is solid, pass side is stock. Trans mount is not stock, im running a T56, but it is at the correct angle and am using a rubber mount.
Is the rear at the height you want? Is the rear wheel tucked into the rear wheel well like you want? That will determine how close the rear end and driveshaft are to the floor pan of your car no matter what rear suspension you use (leaf, 3 link, 4 link angled, etc)