To lower the cost and allow for customization I decided to create a bare steel kit of plates for IndyMill. This kit is not painted (you need to somehow protect it from corrosion) and untapped so you need to make all the needed threads on your own. So unlike IndyMill Steel Plates Kit this one is not ready for assembly out of the box.
The steel plates kit is composed of 11 custom-cut steel plates. Z-axis rail supports are 8mm thick and everything else is 6mm thick.
More info on the whole project: