Have you considered/thought about creating a similar mod for spaceships from space exploration? It would make things a lot more simple and versatile for automating space ships.

I haven't. Tbh, I've never played Space Ex. If I get some time and start playing that mod I may give it a look.

I'd like to add my support for this. If I can help with any tech info let me know. I would think it'd be very easy given your knowledge about combinators and signals.

https://spaceexploration.miraheze.org/wiki/Guide:_Rocket_Circuitry gives a nice overview, particularly under "Multi-item rockets". Producing a green signal would be the key, based on conditions.

https://www.reddit.com/r/factorio/comments/c4b2ag/space_exploration_cargo_locket_launching_station is a popular launching station, although I've simplified it - https://pastebin.com/AjX5P11g

Working on a heavy rewrite at the moment. Once that's done I'll take a look at this. Thanks for the links DJQuad.

Sounds great! If I can help in any way, hit me up.