I've just got these in stock if your are interested

https://passionford.com/forum/sin-bin/264204-cosworth-rose-jointed-top-mounts-group-buy-now-with-pics-fitted.html

they come with the spacers etc.

This style of top mount is used on Group N cars I think. It used the std bush and requires no drilling.

PM me if your interested as there are a couple in stock that I could do for the group buy price.