Mendel90 Dibond rear housing

As many guys I started with a Mendel90. My printer was bulit according nophead github files with some changes due to parts availability. If you print PLA all is fine but when starting with ABS or other stuff a very small smell of a wind can destroy your print. I looked on thingiverse and in several online resources but nothing was appropriate to cover the Dibond version. Ok, my printer frame is from 3mm aluminium sheets but there is no difference in general.

As I am not using any 300mm spoo