Nice adventurous day for you Colin, I'm so pleased you have recovered enough to do all that. I know about the road diversions in Worcester. On one of our recent trips to the Midlands looking for a vehicle, on the return journey the junction of the M5/M50 was closed, so knowing vaguely some of the roads to get into Wales from the Worcester area, decided to go that way. Every road we tried, it was closed, in the end we were heading for Tenbury Wells and the SatNav decided to play up. Heaven knows how we got there but eventually to our relief we found Hereford which we know and came home through Abergavenny. Arrived home at about 2am. Actually, a week or two later we went through Worcester in the opposite direction and found the closed road situation to be just as bad, but at least it was daylight.
We have bought a new box from a firm up North, that arrived this morning just before we left home and the seat is from a similar VW LT35 to ours. Now waiting for a seat belt from the Bay of E.
Enjoy your trip to Tamworth.