LPG Tank Bracket - SYTB-3 from:
http://allforkliftparts.com/safety_tank.php
Note: I added the strap to mount the dual-stage LPG regulator - The regulator is positioned towards the rear of the tank and will be protected by the tank and battery box until I can get a tongue-cover built.
A little clean-up and paint touch up and it will be ready for bolting to trailer tongue.