Interesting... Want to see how this turns out.
I just bought a H4 kit to put in the stock housing and while it is bright, the output is messy. It would be nice to do a retrofit that could use the H4 bulbs and not require any cutting of the housing. Especially under $75 (excluding the HID kit).
Picture of current 5000k HID output:
Picture of 6000k LED output: