I bought a new trailer from Loadmaster Custom Aluminum Trailers of Tampa, FL. www.loadmastertrailer.com Couldn't be happier with it. They have a few dealers from what I understand, but I purchased it direct from the factory and had it delivered via uShip.com
I did look hard at a few different Ventures, but for a little bit more $$$ I got a much better trailer. Here is a very large Venture trailer dealer in CT. http://www.diamondmarine.net/trailers
Heard good things about Laodmaster, they also have a more cost friendly trailer called 5 Star. Another place where a member of this board purchased his trailer was from http://www.davestrailersales.com/index.html Usually disclaimers apply.
Cost to fix rusted brake drums and brake lines is too high to put into a trailer that old. Plus, I'm done with painted steel, drum brakes and leaf springs. I wanted aluminum (less weight and better for salt water), disk brakes and torsion suspension (supposedly better tire life).