Not a name anyone on this forum has heard of before, however my father builds transmissions by trade, and being Mopar guys we've done quite a few of these transmissions. He takes his time and does things correctly, the first time.
Built quite a few, including my own. It survived in my 2001 Ram 1500 towing things that truck never showed have for years and years.
Have several out there that have been abused winter after winter in plow trucks that plowed large parking lots.
We use quality parts, high energy clutches, add more clutches per drum, use billet servo pistons, TransGo shift kits, snap rings (eliminating the wavy ring), your desired ratio shift lever.
Basically turn an 46RE into a very stout 47RE with upgraded parts throughout.
Only use Precision of New Hampton hgh quality torque converters with billet front cover (almost 50% larger lock-up clutch). Can add the anti-ballon Allison hub if wanted).
Make certain to get a quality cooler, and I also recommend a deep pan...