[Jamo]

Not really.

There are more than a few differences in aluminum CSXs and Kirkhams, but those differences depend quite a bit on how your order the rollers. Electric wiring is different, transmission mounts, brake and coilover fitments differ, and, of course, the materials used and the amount of adjustments of the suspension pieces themselves differ, depending on how they are ordered. Seats, carpeting, interior materials...all differ depending on sourcing. CSXs come usually come with fuel bladders while Kirkhams come with road race tanks.

Finally, and the biggest difference of all...you work directly with the mfg when you get a Kirkham vs. working with a dealer when you get a CSX, so much will depend on how you order through the dealer in the latter instance.

I would suggest you talk with both the Kirkhams and the folks at Shelby (or a dealer) to see what they offer, and then seek input from owners of both to determine what options you might want. I would visit Provo and Vegas (and I did before i made my choice).

Those are my comments...hopefully you'll get some input from others with hands-on experience of either or both marques.