Thanks Terry!
I've been holding out while watching craigslist for the last few months in my area, but there hasn't been anything that is priced right, in good shape, and fits the dimensions/load-rating that I'm looking for. The couple that matched my criteria were recently painted, and who knows what rust issues have been painted over. Ideally, I find a galvanized one, so I can better assess corrosion.
I'm a few weeks away from starting the next project for the boat before spring, and that includes removing the centerboard, which I was hoping to have a replacement trailer on hand to slide back in after the CB is blasted/painted and the hull cleaned. If I don't find something soon, I may just take a risk on one of those recently painted ones.