I won an auction on Ebay for 5 Nintendos and all I wanted was the controller ports out of them. You can have them for the price of shipping. It shouldn't be too hard to rig up your own controller port, using online NES controller pinouts. If no one wants them for parts or to fix then they will be going To the attic to never been seen again...

Break down of Nintendos;
2 Working (working meaning after you hit the restart a few times you can play the games, much like every Nintendo. I used Final Fantasy 1 and Skate or Die for the test.)
2 Probably Working - Missing 72 pin connector (10 bucks on eBay).