Budget corded iron, 60Watt like Radio Shack Model: J-060 | Catalog #: 55048001 $14 should be fine for any coil type work. Not an iron to do any type of board work, just for coil lug / wire attachment. They have a few different kinds. Duel power ect.. I would think 40-60Watt OK. NO BOARD repair. Use electronics solder 60/40 tin/lead with rosin core. Pre tin wire Pre tin coil lug. Attach. Coil lug may take 5 sec to heat. But not a lot of time.
watch this video to get some inspiration.
Soldering is easy, if just takes practice and the right equipment.