I am perturbed by references to "sister" car to XOO347F
that is Alan Mann escort and not a ford built car they were special and had outriggers welded into the roof
I was at Gomm metals before Frank died and he mentioned they built the Mann escort shells so I asked hm about the roof outriggers.
He was surprised i knew about them and he said they where how first job when he started wring for his father as an apprentice and they where a "bee atch" to install. he said he must have done 3 or 4 shells and they often wrinkled with the heat and he couldn't give them to Mann team to use like that