Fucking up the iron is nearly as bad as her fucking up some expensive shirts when she goes to iron them. Out of all the tools you should get, the iron is the one you have to get. Everything else can literally be done with a steady hand and shop tools ... a rat tail bastard file and you can jimmy up a jig to act as a crude guide for example.
If you are buying a kit, get a dedicated wax iron (one you will never use to iron clothes), a medium grit diamond stone, a hard gummy stone, an adjustable file guide or a file guide set for both the base and side edges, a scraper. I'd also recommend some green scotch brite pads, base cleaning solvent.