That still requires effort on my part, not automation.  Kinda defeats the purpose.

I understand, but as long as you don't expand or tech up, it's a one time thing.

Wild idea here, but what about using programmed orders to an orbital cargo fleet/station with a timer after estimating the time it takes to reach the desired number of MSP and dropping from it? (Would only work if maintenance capacity wasn't expanding)

I constantly either run out of MSP or out of Gallicite to build them because I never turned them off, this is very much a required feature.

Yep, that would be quite nice.

I think it would be nice to be able to set an upper limit to the amount of MSP your maintenance facilities will stockpile. Instead of having to periodically check that I'm not using up minerals overproducing MSP or that I'm running low on MSP and need to restart the factories, it would be very nice to just be able to say, "make them until there are X number in the stockpile". Ideally, the factories would work to just keep the stockpiles at that level and not be a "make them until you reach that level and then stop until I tell you to start back up again." Also, I think you would want to retain the option to stop production completely during mineral shortages, etc.

I wouldn't mind a similar feature for fuel production, but I don't know if that would be as necessary since, as far as I know, sorium isn't used for anything else so using it all up for fuel wouldn't be that big of deal. It would provide a little flexibility, though, as you might want to use some of the sorium for fuel production and then send some of it to another fuel production site in order to not put all your refineries in one basket, so to speak.