I meant to comment on this ages ago

I'm starting to get my act togther and getting bits to fit the auxiliary gauges.
I'm now fitting an m52 to my e30 with the plastic oil filter housing. Ca-automotive want something like £150 for the adaptor that replaces the lid! And that design has the the gauges point up towards the bonnet
I remember seeing a distribution block that screwed into the original location but i cant find one in the uk now. Or does anybody know of a sensibly priced adaptor for the plastic lidded m52?