You will do fine.
Anytime you take your rig off road you run the risk of damage. This trail is a fun one and from the description of your rig you should not have any trouble. The one tough spot is challenging for sure but you would have to work really hard to get yourself off the cliff edge. Never be afraid to take a strap or cable.
84 truggy v8/dual cases/40's/cutting brakes/hydro steering/ etc................