Inspired by
@Spaghettiboy78, back on page 53 of this thread, I dismantled the driver's door panel knob escutcheon (for want of a better description), and replaced the flush dull red LED for a superbright blue LED, and drilled the trim out slightly so that it stands proud a couple of mm, I can now see from some distance if the van is indeed locked.
View attachment 66550
It's an hour's work, pull off door card, extract escutcheon, cut off leads, drill out existing LED which is held in by silicon. New 3mm blue LED, 610 ohm resistor for about 15mA across the LED, solder to the existing loom, a bit of heat shrink as I have handed in my badge for the Low Quality Squad, drill a bit more out of the back of the escutcheon so the LED sits proud a couple of mm, slide in new LED and resistor assembly and fill the back with silicone again to hold in place. It makes such a difference, in that I can see if the van is locked and alarmed, without having to go right up to it.