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Unless you have a sponsored visa you can't get anything you really need legally but there always ways around it. You could search foe agents who would sponsor you and perhaps that way you could get long term stay. Again it can be done it's a question of how much you want to try, pay and how much patience you have.

Ok, thanks! Do you have any hint where to find such "sponsors"? ;-)

Oh, and lately I stumpled upon a 1y multiple entry visa for tourists - have you heard about that, could it be an option?

I agree what Luke is saying....you want also to stay and work here for a longer period of time.

Just don't try and avoid your legal status here in the end it will backfire.

The visa is an issue that can be solved with an agent.
Whilst a work permit should be sorted out, no one is likely to care because there are no issues about taking work from an Indonesian and it will bring cash to the country.
The OP's problem could be internet speed as much of Indonesia is still developing as far as that service goes.
He will have to check a service that meets his needs is available in his desired location.