I gave a lot of thought to this for my camper conversion. And yes I completely agree the standard wiring route is rubbish.
I decided in the end to leave it where it is though. There are just too many wires to mess about with cutting, plus the branches for the loadspace lights, right rear light cluster etc. In the end I used plastic conduit, and carpeted over. A bit of pfaff, but it looks fine.
Pic shows conduit channel bottom left just above shelf, then on the right the section in unbuilt cupboard yet to be put in conduit.
MDM_9638.jpg
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