I hate to point this out but, you do realize the three photos you've supplied are of the Group A version of the car in 1985, as is the footage of Jim Richards racing his Group A version at Phillip Island.
There's no way the exact JPS livery would currently make it into GT (it would end up more like "BMW Team Special" on the side (based on Senna's Lotus) but it would still be great to have some older race cars to use, as there really aren't that many currently on GT.