I've had a kei truck for about two years. Street legal somehow with title.
Suzuki Carry 4WD, differential lock & axle lock , real two-range four wheel drive. Plows like a beast with tight turning radius & excellent heat & defrost.
Highly recommend these. Look for a low-mileage, non-smoking example.
Make sure the paperwork is correct or you will be stuck with a lawn ornament!