If the wheels don't fit with the bullitts, you can buy the brackets from North Race Cars to pull the rear wheels in 0.75" each side. You would need the Fox lenght 5-lug axles as well.
It would be $150 for the brackets + cost of new axles. You could recoop your cost by selling the cobra brackets and SN95 axles.
This would pull your rear wheels in slightly.
I've been looking into the same wheel setup and guys have suggested i do that instead of running the SN95 offset.
I clicked the link in your sig and was looking over your car ...
Appears the passenger side rear sticks out a little more than the driver side??
Also, are those factory Ford Cobra R's? And if so, the R50's or the R58's??