I read an interesting bit about our founding fathers… they equated representation and taxation. Everyone has heard no taxation without representation, but the opposite seemed true as well: no representation to those that did not pay taxes.
Democracy would not work for a growing town. People new to the town would simply come in and vote to get resources from those that had been their longer and worked for them. You see this happening with immigrants to this country from the third world, they are twice as likely as native-born citizens to collect government welfare.
I think a Bill of Rights is crucial for any constitution, governments tend to eat up rights over time and a clear list God given rights that the government needs to stay the hell away from is always a good idea, even though ours has been pretty much destroyed at this point.
Perhaps we should focus on what a local government needs to accomplish and then figure out what type would be best for those needs and what powers it would need to accomplish those ends.