Teardrop Campers Where Can I Find Detail Drawings For The Construction Of A Teardrop Camper/trailer?

Where can I find detail drawings for the construction of a Teardrop camper/trailer? - teardrop campers

I am eager to build an RV Teardrop, and I'm not sure how to begin to order. I'm sure you could understand, like building up for me, but it would be much easier with the instructions. Does anyone know a good website (apart from Ebay, I saw), which is free or by selling detailed instructions for building a teardrop camper / caravan?