All the FRP's come back as 1.7's from DVLA.
The manifold number should be under 500.
The cars are very hard to fake as there is so much cost involved.
If you post the manifold number in here, I expect someone will know something about it.
I see your in the South West. The cars not in Westbury is it?
there's a buyers guide on here somewhere I think
Allon White sports cars are THE people to retrim steering wheels, but you need to supply the Alcantara. Around £120 plus postage.
If your local to me, my local Ford dealer have the FRP cam belt tool.
Tremona in Bournemouth are about the best FRP garage in the South.