I hate to do this, but I have the option of getting either an AT&T setup for $300 with about 6000 miles on it. Or a WH1C with about the same number of miles for $150+shipping, and of course I'd need PT Wiring install kit ($150 iirc). My truck is a 1993, all the normal mods. Looking to tow 15000# fifth wheel cross country with the family. What's your opinions? Thanks guys.