If you are looking for one Rails of Sheffield have one for £176.50 There were only 1000 of these sets made.
townie, you mentioned you work at Tyseley. I had some in-laws worked there in 60's & 70,s William (Bill) Gough, was a shunter then a cleaner as his health failed and George Arthur Bradley, shunter driver, they both passed away in the 70's