Make sure you read up on how to flat tow the Sammy if it's a 4X4 (It's NOT the same as towing a jeep! Key in 1st position, transfer case in neutral, manual tranny in 2nd, start it up every 300 towed miles to lube transmission or you'll be buying a new one).
You can also install a drive shaft quick disconnect to avoid that process for $300 or so.
With that said, I've pulled both a Sammy and now a TJ Jeep and I use the Night Shift surge brake system with the optional breakaway kit. Simple, rugged, low tech, but effective even with power brakes on the toad.