The pseudo G-36 was done by Aurora, and later by Trix. Not sure about ahm, but it wouldn't surprise me. I've accumulated a number of these and worked them over to be halfway presentable.
The chief liability in kitbashing this is the 50' length of the model vs. the 52'6" inside length of the prototype. To be accurate, you'd have to completely strip the verticals and re-space them to get the right overall length and a better shot at the rib spacing. So, either we live with 50', or hope for a new car.
Lee