Before your order of ez goto kit, I am curious if you have a drill press and tapping tool to drill the holes on the bearing cover.

If not, you can pay me $15 labor cost to let me cut the bearing base by the lathe, drill holes by my mini milling machine and thread the 4mm holes.  We do the service to make the DIY easier.  The cutting would be perfect if we can do it.  Certainly, you can drill holes yourself if you have the tools.  You just need to drill and threaded at least 2x 4mm holes on the aluminium base.