I purchased a Bri-Mar open trailer from Hillwood Sales about 2 years ago, 18 ft full deck, power coated, removeable fenders, 3500 pound axles.
Great trailer, towed really well, and Hillwood Slaes was great to deal with.
I recently sold it and got a really good return on my investment, the trailer still looked new because of the powder coat.
http://www.hillwoodsales.com/