Prusa MK3S+ fs-cover with M5 threads

Took the original Prusa model and added reinforcement and M5 threads for a pneumatic fitting. The MMU2 version of the extruder with the chimney was way too complicated, and I just need a way to connect the normal extruder head to my dryer setup. No press in fittings. It is just printed threads. This was as simple as I could make it. Prints upside down from the original but still fits snuggly. Been using it every day for about a week. Seems to be sturdy enough.