Nigel,
As a regular long-haul Tractionist, I fully endorse the advice from Jack and Jonathan.
With respect to the MoT situation, although not compulsory, I would certainly recommend you have it checked over “professionally” in advance of a major sortie.
I actually have all my vehicles MoT tested annually just so another pair of eyes checks them over without the benefit of my rose-tinted specs. If stopped for any reason I can then show the car was at least certified street-legal within the last 12 months.
Bonne route – i’ll give you a wave if we cross paths.
B…..