I would like to join in. I tend to play Black Templars but would be happy yo play Adepta Sororitas instead. Not sure how either would workm in Stargrave
You'll get the aesthetics of the minis and a little bit of the detail, but none of the crunch that comes straight from the tangled mess that is 40k after 2e.
Stargrave is locked at 10 dudes, dudettes, synths, &c., per team. Each has a captain and a first mate who are fleshed out based on archetypes. Below that you can buy a few better mooks "off the shelf" or just take some of the lowest-level free ones.
My IG team has a commissar, an ogryn, a sniper, dude with flamethrower, some regular troopers, and some scrubby recruits.
What Velker and I have played of it is fast and fun. It does NOT take itself seriously. We've checked out none of the RPG elements yet, though likely will.