Rear 'barn doors' for 463s

Whilst drearily wandering through Withams during the web-site-down-period-over-the-last-few-months, I noticed about ten armour-protected 500s lined up. They all looked like the 500 Guard per the pictures of the AGM......except with a few (real) bullet holes in them.....they had been used by our dipcore in Basra amongst other places. I, of course, enquired if they could be for sale: answer, job lot, done privately, all 10 bought, deal done - so NO. Shame.........wasn't allowed to take pictures either........but I started to wonder about those rear doors.

My question is however, how easy is it to convert our non-armour-plated-civvy-spec single door 463, to those barn doors.....and are these the same doors as on a 460 (i.e. is there a relatively cost-effeicient way to do it)? Anyone know.....I've asked a few people in Germany who have scoffed at the idea (there almost seems to be a purist, i.e. 460, versus comfort-seeking, i.e 463, attitiude over there) and have given up. Also, apart from sourcing the doors, do you need a completely different (stronger?) rear panel for the hinges (I've noticed these exist for 460s - and one can buy them relatively cheaply, but is this the same for 463 panels as only the armour-plated ones seem to have them?

Any ideas?

Thanks in advance/ph