Very Light Camper Recommendations Hello all!

I'm looking for recommendations for something pretty particular. My vehicle can only tow a max of 1,500 lbs, which means my options are pretty limited when it comes to campers. I'm looking for something that I can boondock in on long weekends and take to climbing sites with me. 

I'm active duty Navy and I would NOT be getting a stipend for housing, as I don't rate living out of the barracks. So preferably something not too terribly expensive, as it would all be out of pocket. 

I'd appreciate any recommendations as to brands or models that might fit my needs! 

Thanks!
Austin

Tl;dr Recommendations for ultra light campers that won't break the bank