I would slightly disagree with the selling separate bit,
3 of my past vans I sold with the DIY setup in and they made very good money over a standard empty van - new starters just love to buy a van ready to go.
of the 3 where I wanted the set up to move over to the new one they made a little more than "we steal your van dot com" - but they were pretty knackered by the time I moved them out
Darran
I'm still being influenced by my motor trade days.
If the van was older, then I would say that it could well fall into the financial bracket a newbie window cleaner could afford. In that case, I would leave the system in.
What's a 2015 Citroen Dispatch worth? Someone is asking £8995 for one with a 2.0hdi engine, Enterprise spec, and with 95k on the clock.
Then someone else has a 2015 Dispatch with the 1.6hdi engine and 52k on the clock and asking £5995. Is the 1.6hdi still prone to turbo failure?
Both of these are from resellers. They will have at least a grand and a half profit across the deal and have access to finance if required. (1k profit and £500 for work needed before resale, ie. interim service, valet and painting rims, etc.)
My experience.
After my trailer system, I fitted a 650 litre tank in a 51 plate 1.9 Citroen Relay swb. In 2008 I purchased an 04 plate Citroen Relay 2.0hdi Enterprise with central locking and 33k on the clock. I advertised my 1.9 diesel as a complete package and didn't get one single enquiry.
I removed the wfp system and transferred that system to the 04 plate Relay. That 51 plate van got snapped up straight away by a roofer.