Teardrops n Tiny Travel Trailers

So as usual, my plans are changing. Instead of building a foamie teardrop per se', I'm going for a more traditional rectangular floorplan with everything inside. Problem is, I still want to keep it as short as possible for aerodynamic and low-garage-ceiling reasons. I want to use a factory-made door, but to fit this situation it has to be less than 5' high, 4' 8" would be even better. 24" or 30" wide would both be fine.

I know I could modify a door, but honestly I would like to keep the door the one thing I keep factory fresh. Got any ideas for suppliers?

Thanks in advance -

Door Factory .... They make custom doors ... or a home recycle place ... ??? 

Call off the dogs, found a 4' 6" one on eBay. Time to get a platform built and start cutting foam!