How or where to get a plan for a jailbroken iphone?

Ideally, I would just want a data plan, but I have no problem playing for a full plan as long as its not as expensive as the those big telephone companies, ATT, Versizon etc…

What you imagine does not exist.

The expensiveness of a data plan is subjective, you must state what amount to spend is reasonable. Like metro pcs changes $40 Or $50 or $60), I think that is reasonable, do you?

Virgin or search for GSM providers.