Terminal A goes to switched live. This usually means the fusebox section that comes from the ignition or sometimes a connector off the headlight switch (fusebox is better but both are used in the T2 bus).
I believe that brown 'junction box' is actually a flasher unit. This is connected to the roof switch and through the warning lamp on the dash. It should only be powered when the ignition is on, and the roof is up.
The better wiring diagrams are on samba.com (in colour!) Have you not got them?
I rewired the entire front loom from the fusebox with wire from vehicleproducts.co.uk
I couldn't find dashed secondaries anywhere so I had to settled for striped.
For wire colours that I couldn't get I picked the primary and then hand-dashed the wire with a permanent marker so at least the...
Read about it on the latebay, but its good to spread the word.
One thing, you cannot trust TrustPilot. They take money from companies, and the ones with bad reviews can pay to have them 'fixed' - flagging bad reviews as not genuine and then banning the reviewers.
That does look nice. Do you have a photo album on flicker or such?
Is it a '73 MY then (built after august '72)?
I have a 71, but I'm also active (more so actually) on the late bay forum. Are you a member there too?
I use Hagerty's also. Just renewed with them. Gone up a bit though this year. Original policy agreed value was supported with 5 photos and a snap of the odometer.
Blimey, 50K for a crossover, is it like, mint? I'd like to see pics of that!
I'm sure the '70 was the first model year for 12 fuses?
The '72 box is 411 937 505 C. The difference between the A/B/C is doubling up of the columns are in a different place because some of the functions are moved to a different fuse. It may be possible to either move the connectors around...
Note that your buddy seat should have a movable arm on it with a peg that slots into the right-side bracket attached to the bulkhead. When the seat is in the left position the arm swings out of the way. See the three brackets in the picture below. In total you should have three on the wardrobe...
The right bracket fixes to the driver side bulkhead.
The P.O of my bus put shelves in the wardrobe. I'll see if I can get some photos later.
I also could do with some new trim. Our furniture is looking a bit tatty, so next year when I do a respray I'm going to think whether I should rip it out...
Just a point about self-tappers, at least Dormobile fitted all their cabinets to the floor using them. Probably others too.
I'm actually going to be pilot drilling several holes in my new floor today to achieve the same thing. 😓
It doesn't look like it's in too bad condition so I think it would be a shame to have it rotting away in the garden. I would suggest maybe sell it to someone who will restore it, if you cannot or dont want to pay someone else to restore it.