I find the fly-away cost at $152.5M per copy, with the total weapons system cost per jet at $188M (FY2012 proposed budget, http://www.saffm.hq.af.mil/shared/media/document/AFD-110211-038.pdf). While we stopped producing the jet, FY12 budget numbers are included in the budget docs as accounting details become more specific.
Regardless, selling the F-22 overseas would literally take an act of congress beyond the usual FMS approval processes. The Boland Amendment, passed when the F-22 was authorized, stipulated the F-22 was to be internal to the US, only, and therefore prohibited from foreign sales.
As a complicating factor for foreign military sales (FMS), the F-22 was not designed with FMS protections and limitations. Cost estimates to modify the source-code to allow export run to $500m and up (total cost, not cost per jet).
This lug, added to the total weapons system cost truly make it unaffordable to most all allies. . .even the US.
From an original purchase plan of over 700 jets, we only acquired 187 jets-—and that number includes 6 jets to be used as test aircraft and 2 jets for RDT&E.
Sad thing, too, as the F-22 is a spectacular jet.
It's worse than that. Only that last 91 aircraft are fully capable of receiving the newest air-to-air and air-to-ground software.