The most reliable option would be an EZGO txt 48 volt cart converted to a hunting buggy by yourself. They really aren't that complicated, and you can keep it running yourself. If just gotta have 4,WD, use the system that carries power from the motor to the front wheels. That system is simple and reliable. Though if you add a limited slip rear end like Snuffy did you probably won't ever need 4wd.

The AC systems are very complicated, and something is likely to go wrong.[/quote]

Preacher is correct. I converted my EZGO to limited slip rear end. If you get stuck you had no business there anyway. I’ve put mine in some ruff stuff. It will climb a tree. That said I would’nt have a cart without a winch. You can get anything stuck .