T-56 Transmission Install Thread

I know the best plan of action is to mock up the engine/trans in the car, but I'm trying to get ahead of the game and have a rough action plan by the time I get there. I'm trying to figure out roughly where the rear mounting location for the trans is going to be. With the factory clutch cover, I'm measuring 23.25" from the bellhousing face to the mounting bolts on the trans. The /6 727 that came out of it measures 23.5" but I'm not sure how the /6 positioning compares to the small block/gen3 hemi positioning. Any idea whether the front-to-back positioning will line up with the existing x-member? What about height? Will the TR6060 need to sit lower or higher than the 727?