Towing trailer with 300SD

I would like to pull a small trailer behind my 1980 300SD. I need a vehicle to travel to and from art shows with my work. I just need an educated opinion on wether a trailer is a good idea, what hitch system would be best and what size would be the maximum? I have only had the car for a little over a month. I went through the 75MPH guide and the Diesel Perfomance and Tuning and from what I can tell the engine is in really good shape. It has been pretty cold here (Chicago) but it has started right up everytime and seems to have a lot of power. It has 165,000 and I'm having the timing chain replaced but otherwise would like to believe this car will be able to do a lot of traveling.

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