Workbee CNC linear spacers upgrade

Here are my Workbee CNC upgrade spacers using the old back plate and HGW20CC linear rail and blocks. This will not work with any other rails than the HGR20 series.
I've updated with brief instruction for upgrade and an .svg and .pdf of mounting plate required for the z axis. Be mindful that this upgrade will reduce the X axis movement by an additional 60mm.