http://www.danco.net/
I do not think Danco does chrome, but they do hard anodize. I don't think any one would do business shipments in a flat rate box, I don't think they are as safe as far as tracking and insurance. But who knows? They have a location 12 miles from me so I do not know their shipping policies. On the $70 lot charge you only get one type plating, that includes color. Hard anodizing various by size of the part, as an example stereo knob sized parts 35 cents each, alternator pulleys $1.25, crankshaft size pulleys $7.50 etc,etc. You can get various odd sized parts in your lot, but only one color.