See the thread "Forums 101" in the Administration, News, and Announcements section for a helpful introduction to the forum.
You say "as light
as possible." An important question is how light
you need it to be. Molded fiberglass "egg" trailers start at around 1300 pounds once you add some food, clothes, and gear, and go up from there. A tow vehicle rated for 1500 pounds is about the smallest I would consider using, and trailer choices are limited. If you plan to tow with a vehicle you already own, your owner's manual is the place to start for towing information.
Glad you're here- lots of good information and helpful people. Best wishes in your "egg hunt"!