Most modern countries have some form of government regulations like the FCC here in the USA. You will most likely have to abide by their regulations, and that is most likely zoned for companies providing a service.
Now, on the hardware side you would need a lot of boosting power for signal boosting, and you would need a backbone controlling all the IP leasing, most likely enterprise level network hardware and/or a server. Then you would need to conenct those to an ISP and have enough IPs to lease to all your clients, which you could control on your own VLAN and then NAT it to the ISP's network, but to be honest I don't think it is quite possible to do what you want with out spending some serious cash. Outdoor access points start at like $2,000.00 each for a 1500 foot range. That does not include cabling, or power ran to them either.