Ahh i would give ESX a second go its really nice. You can edit all items in the data base to be free. So you could just add a bunch of really nice stuff in the server for fun and keep to the ways every one is use to.
As far as the police system yeah it can be tricky but to be honest thats why i use this
Its super easy to set up and by using this you would be able to let officers have esx jobs as well as be a cop.
