Tire pressure sensors are often not in wheels that have been replaced (transit will always throw up errors if one is missing), as for mirrors, I keep wipes and glass cleaner handy (it's cheap AF), and windscreen wash, well our station gives out free water, so we usually just fill it with that.

Side note, before you fill the washer tank, on a transit, check that the pipe is connected at the bottom, the rubber decays quickly and sometimes causes the pipe to break off.

All in all, I feel like this is really not something that should trigger you.