Personally, regarding such a community goal, I'd keep the first encarnation simple. Not building a station(s), but building scientific research platform(s).
Pick two or three locations (eg: Barnards Loop) and at each, at the location where the potential station is to be built, have something akin to "Seeking Goods". CMDRs would then transfer an appropriate cargo to those locations (just as per "Seeking Goods"). If targets are met in the time specified, a scientific platform would then be built there a short time later (next software update). The CG could be to build as many of the three as possible, or the one where the most cargo is delivered (ie: in competition).
These platforms would then basically be standard platforms except for in a scenic location and obviously serve/help explorers.
https://forums.frontier.co.uk/showthread.php?t=186002
This scenario could be repeated a few times to create scientic platforms at a couple of key (remote) locations.
In future CGs it might be possible to have an emergency at one of them which requires supplies to be delivered to them. If it fails, it would becomse a "dead" platform. ie: The lights are out, and there's no one at home!
As another suggestion, if in the end a number of these scientific research platforms are built in remote/exotic locations, it would be nice if their Bulletin Boards offered simple missions for explorers to do there.
Possibly even simple courier missions to take/collect (important) data, or even take data between them. Would be a nice excuse for an exploration trip, as well as getting a CR reward at the end of it too!
Possibly even important cargo consignment missions to/from them too?
Last edited: