You can't beat the secondary market. Everything here cost me under $100 total. None of it is stolen lol. 50 bucks for the bike, 20 for the trailer, and I had to get a couple things to complete it. 
Still not done, one of the pedal arms is stripped out. I'll probably have to buy a new set. Once that's done I'll take the munchkin to check the crab trap.
Why am I such a secondary market enthusiast? I like to buy things at their marginal utility and I like to keep capital flowing between human beings instead of with megalithic machines. Also, it feels better to work on your property, a little elbow grease makes things more yours.