Just a curiosity, it seems strange to hear early livery 141s referred to as Black'n'tan which more accurately describes the early super train livery (i.e. 50/50 of each colour like the coaches). The early 141s were basically black with a white stripe and a thin tan stripe, but basically they were overwhelmingly black, or black with white stripe. I understand everybody refers to them and the early A class as B&T, but B&W seems clearer.
Yes the early single white strip cravens are the coaches to run behind the early 141s and as you say in a mix with laminates, PRs and odds and ends. I love that livery and the era because you can mix an match old coaching stock and short, medium and long trains all look right. Throw in short luggage vans, TPOs, heating vans and you can smell the 60s.