Consider the price of the beadlock rims to get an idea of how much a bargain these may be. Let the total installed price be a guide.
I drove a HMMV in the reserves enough to find the tires are ok. I always thought they were heavy and stiff - they did get good traction in mudholes - but part of the feel of the tires may have been masked by the suspension. Of course, the HMMV platform is no lightweight.
High speed manuevers, like taking an exit ramp and braking to 35 were dicey. It could break away more easy than Cherokee. Being on a Cherokee would be a lot more like any other larger tire - lost braking action due to rotating tire weight, slower acceleration, etc. And they are bias ply, which compromises traction - the tread won't flex as well as a radial, even aired down. They were designed to withstand abuse in poor conditions far from paved roads, not necessarily as the answer to extreme traction situations. In the field you try to avoid challenges and get the job done as soon as possible.