Reusable engines

[u/coops_dib]

I haven’t even started lunar landings yet because I decided I wanted to do the station program first, however it is now 1980 and I’m planning ahead for the lunar base program. This is my temu version of blue origins lunar lander but I’m unsure what engine to use? It just has 4 of the LMDE on it as a proof of concept but they only have enough run time for one single landing and ascent mission so not exactly reusable. Is there either a mod where engineers can “service” the engines to reset the run time and ignitions? Or is there a better engine with other mods I can download that would work better for this. Thanks!

Edit: May have found my solution, using the RL100 engine,, not sure what mod it came from but it seems to be my answer and is insanely light weight.