Brmj Demonstration Design & Rules
Rocket construction rules 0.8
Here's the game rules, since it will matter for lookign up things like what stats are used for which rolls, and volume thresholds for crew stress and such:
Space Race Co-op/Comp
And here's my shitty spreadsheet cluttered with stuff from this latest project. The engine design is pretty foolproof, but the rocket and spacecraft stuff is all hacked together on the fly. Still, it should be pretty obvious how it works if you poke around a little.
Google Sheets - create and edit spreadsheets online, for free.