How about adding a second SIM to your Smarty accout and then asking for a PAC code of the first SIM? Not sure if it would work or whether the account is linked to the first SIM you got.
Well data doesn't really cost money. What costs is putting the infrastructure in place and then the operators can charge what they can get away with (or they can reduce the cost to undercut the competition and attract more customers). I'd suggest Sma...
The best bet would be to put the SIM in a router and use an external antenna (or at least find a good position to put the router) and then connect to that via wifi. Would be a pain swapping the SIM card each time you go out. Possibly a second SIM for...