...but I'm getting there.
The comfort blanket for the custom made wiring loom has been well worth the extra expenditure - the Dymo heat shrink labels are helping me a lot
I think I've (now) got most the wiring I need to complete the job. I've just ordered a new fuse box and a box for six micro sized relays that I'll be fitting on the passenger's side (RHS) inside the cabin on the bulkhead.
I've gone extra large on some of the wiring - 2.5mm^2 for some parts of the wiring loom where it is only specified on the Volvo wiring diagram as needing 1.5mm^2. This is over kill but allows a bit of extra grace for things like plumbing in the tow hitch socket - so now I know the wires are up to what ever else gets plugged in there.
Extra wires that won't immediately be used (if ever) are also going in so I can upgrade to having a rear fog light or a heated rear windscreen for example.
I've done my best to future proof as much as possible but I realise it will probably not be the case!