Hannl RCM users: Anyone using the Circular Brush?

I was finally able to buy a Circular Brush from a Hannl fan in Germany.
This arm can be retrofitted to any Hannl RCM.
It came with the mounting kit, but without a drilling template.
I also have a 5mm thread tap and 4mm drill bit ready to go per the online instructions.

Do any of you have access to a drilling template that could be emailed via PDF? My machine is a Micro EL.

If not, I wonder if the same dimensions/location for my vacuum arm mount is in the same relative position? If so, then I could create my own template and match its location on another corner.

Any wisdom from current owners?