Don’t underestimate the chore aspect. My first proper grinder was an aergrind. It’s a good little grinder and I never minded it when doing v60 or aeropress for 1, but it was a bit tedious for more than one.
I then got an espresso machine and it was tedious for one and a pain for more than one. I powered it with a drill for a bit, and then got a niche and haven’t looked back since.
I still like the aergrind to take away with me, but not for everyday.
I don’t want to put you off a hand grinder, but don’t underestimate the work, and I think it not being a chore for 4 people is unlikely. If I was you I’d consider going for a more moderate price hand grinder to see how you get on and for portable use, and save some of your budget to go towards a motorised option in the future if you do find it a chore.