Let's get the facts straight:
1. The Wii is modded
2. The games are pirate
A modded Wii is no problem at all, specially if it is soft-modded (i bet it's the Homebrew Channel), and contrary to what people think, a modded Wii (just as any modded console) CAN PLAY ORIGINAL GAMES, but best of all, can get additional features that weren't there from the beginning, and if it is too tempting, just reinstall official firmware. I say, buy the Wii.
The 200 games are the real problem, but to every problem there's a solution: Buy the Wii for the price and tell the guy that throw the pirated games away, if he still wants to sell them to you as part of the whole package, then throw the games out yourself, and just keep the Wii.
Using the NRA's favorite saying about guns: "Modded-Wiis don't pirate games, people pirate games"