G'day MF,
Yeah, I'm a dyed-in-the-wool scrounger, who does stuff on a minimal budget, too.
For bigger items like deflectors, it would be quite easy to set up a 'steaming chamber'.
Made from say a 20-60L steel drum with a clip-on lid, or just a loose cover of plywood or sheetmetal, and some sort of arrangement to keep the parts out of the water. Sit it on a decent [double ring or better] LPG ring burner, add a half bucket or so of water, and away you go.
The drum would need to be thoroughly degreased though, if it had contained oil or grease of any kind.
