RE: How to bend wire landing gear...
Yep. Bailing wire is ferrous and, Lord knows, I bend that in loops, spirals and twists all the time. I'm holding a carb down on one of my favorite planes with it (the barrel bolt stripped and costs as much as a replacement engine to order).
Hardened wire may need heating, may nut. I've bent 1/8" K&B music wire full 360º loops plus 90º to make landing gear "mousetrap" springs with Higley wire benders and a large pin-punch as a mandrel. Just have to work slow and apply steady pressure . . . and hold your tongue just right.