Ye youll need to do a full rework around with steam to try and get the account back but they should be fine with doing it.
Another good way is if you've made purchases on steam on the recovery include what your payment methods where etc.
Motels would be a really good idea especially for groups and gang roleplay.
As well if not used for gangs it would be a great place for new people to the city to start out and at least have somewhere they can say is owned by them.
For what your wanting, use can i run it and see what kind of spec upgrades you'd need for what your wanting and go from there with pc building websites