Sounds like you have done your homework as you know more than your dealer, always seems the way now, apart from a certain man in Liverpool...
We almost ordered a Coast similar to yours, with your options, plus a heated screen and towbar, went for the ocean in the end as we wanted LED lights.
Personally i now wouldn’t order using a local dealer, go with the best deal you can find in the uk using DTD or Autobid, then service the van locally.
Anyone buying across the channel will have a slightly different standard spec than the UK
give one spare key to a trusted friend, that could post out to you if you become keyless.
On the new ford vans, if the key fobs are motionless for a certain time, say placed on the table, they automatically shut down stopping the cloning done by thief’s using relay transmitters etc. Not sure if vw are the same, As far as I’m aware California’s are keyless, ie no key, just the fob, but not keyless start, you still need to push a button on the dash, although there’s an app, but I still don’t think you can start a California engine remotely.
A heated windscreen could be useful in Scotland and if it’s a daily driver, big high screen to scrape clear, but another costly option.
Good luck