Check yer rig over carefully for worn U-Js
, steering & ball joints, etc.
... anything that might break from the strain.
Add a radiator hoop and tube your fenders narrow your bumpers if possable.
Smooth out and flatten your rig's belly.
Do what ever is needed to get a full and equal range of stop to stop turning.
Make sure your power steering equipment is in top shape, upgrade the pump if necessary. Forget AGR.
Learn how to brake turn and practice to at least do a front burn.
Take off every thing they allow that might get dented ... tailgate, lights, doors ... even yer hood!
Practice communicating with your spotter so you both are talking the same language. Tell him you will need to know the proper approach angle (which you usually can not see) BEFORE he turns around to go farther up course.
.... for starters ...