I have a couple of cheapo Next-Step child trailers that I use. They are very inexpensive ($20 to $50), readily available on Craigslist or other second-hand sites, can easily be converted to a flatbed trailer (there are numerous instructions/examples online). They fold flat and easily handle 100 lbs.
One of these may be a good starting point to see if you even like pulling a trailer before investing in a new fancy one.
I would definately suggest a kickstand because the range of motion of the trailer hitch is limited.
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Paul Pinigis
Owner of Origami Bicycle Company