Beleive me...none of these pipeline is going to work out because there are too many surpising events lined up in both Pakistan and Afganistan after US moves out of Afganistan in 2014....These are just US containment statergy to contain India,Pakistan and Iran through different means....Ultimately..South Asia will suffer ....
Finally someone spoken some sense. IP is possibility as Iran already built pipeline upto Pakistan border. If Pakistan can have political will and can overcome US-Saudi pressure, finance from third country could accommodate the pipeline.Pakistan should send clear message to Saudis - pay up $5 billion/year for oil and gas or shut up. And if India is really interested then india should use its trick on Saudis so Pakistan can bring the gas. Once Pakistan gets the gas, india could easily (given commercial agreement in place) extend that pipeline.