I had the legs bent at work for free, I cut them to fit, drilled the hole in each, had the wheel, hub, and legs powdercoated for free, vinyl overlay was $5, and glass was $22. I still need 2 more lugs for the red one at $1 each.
So for me, I had the rims as extra so they were "free" so I have maybe $40 in each for the hardware and bits and pieces I needed.