I would like to suggest a DLC pack of locomotives that would have been frequently seen around London Paddington during the early 1970s. The pack could include... Class 42/43 Warship in BR Blue. Class 22 Baby Warship in BR Blue. Class 35 Hymek in BR Blue. The Class 35 and 42 could be layered onto WSR as both have been seen there whilst in preservation. A couple of possibilities that could also be considered are... Class 14 Teddybear Class 41 Warship However both of these may be from slightly before the early 1970s.
