Originally Posted by
RickWhite
Trailing arm reinforcements are another difference. Depends on how accurate of clone you want to make, and in what sequence of the ~1500 cars. The Konradsheim book is very helpful in detailing the differences and the cost a relatively small amount compared to the cost of your restoration. It is also a great book to read regardless.
The car you linked to is quite a special one-off RS, so even that would have substantial modifications relative to a "normal" lightweight, e.g. the S/T flares rather than RS and the 3.0 spoiler. Further compounding matters, that car has been restored, so you're copying something that is not exactly the same as original. Either way, I'd suggest contemplating whether you want a "tribute" or "clone" which in theory is the difference between something which reasonably approximates the experience of driving the car you are after and something which is an exact replica and indistinguishable in driving. There are some great threads on here which illustrate the rabbit hole of getting the minutia right, e.g. the quantity of undercarriage protection in the wheel wells. Looking at the photos, it looks like a larger '74-'75 flag mirror - was that original, a period improvement, or done by a subsequent owner? Interesting questions, or a waste of time? It is for certain a beautiful car and will be rewarding to emulate!
FWIW, the correct S TBs and stacks along with a 019 pump are for sale on one of the forums, I forget which. In the US, Eurometrix can convert your E stacks to RS specs. It isn't cheap!