The cover should be printed in ABS, ASA or reinforced ABS-CF/ASA-CF. For two-part printing on a small printer (220mm bed), ABS glue (e.g. Tamiya 87137), acetone, ethyl acetate (or even nail polish remover) should be used to glue the parts together. At the bottom of the cover there is a place for a 2mm (M2L3) thread insert - available e.g. on AliExpress.
The author marked this model as their own original creation.