Yes, did ponder that option but wasn't 100% sure if would work and Sirius was only open Sat morning. Ordered one of these, and very happy with what you get
http://www.billetparts.co.uk/catalog...ter-p-136.html
Had talked about fabricating one, but the EQ6 has lot more surfaces the HEQ5 and a block of aluminium is surprisingly exxy actually. Billet parts one comes with nice centre post too, rather than having to swap the one off the tripod all the time.