Closest thing to the 300C would be a Hook, currently. The Link series is great on the burn as well. Too bad they're not being made anymore.
Nothing in the AMF line is going to be as weak. Cobra is low diff, but the cover is very strong (F74), so if you're standing in the dirt, that might be a problem.
So I would go with a Hook, and I would drill it weak. The solid will be smoother as well.