Currently, I don't think the Consortium-aspect of the Typhoon will give the PAF problems. The UK, Italy, Spain and to an extent even Germany are going to need manufacturing work in these tough economic times.
Financing will be an issue, but the Typhoon line will be cold for 2 years, at which point they'll begin with Kuwait's order. I think we can add another 2 years before they can begin another order. In this case, Pakistan has four years to come up with a down-payment, and a mix of loans and term-financing could take them the rest of the course.
My main concern would be ancillary costs. The PAF has a solid air-to-air component with the F-16s and JF-17s, so the Typhoon - as-is - would add to air superiority more so than deep-strike. It has the payload and hard-points, but Pakistan would get maximum utility by integrating its own SOWs to the platform. So there'll be a cost to custom integration, or a cost to buying pricey munitions from MBDA (e.g. Exocet, KEPD 350E, etc).
Affordable customization for deep-strike might be a reason why I think the Su-35 is something worth pursuing. It cost the Chinese $83 million a unit with spare engines and parts, so it could be more affordable to procure up-front. The main issues are (1) is this actually a real factor for the PAF and (2) are both sides ready to level to make it happen.