Thanks to Lounglizard I got into contact with this Michaël, organizer of ODiT (Operations Dice in Town) who also creates laserkits for his projects.
Turns out that after visiting Brother Vinni's stand at Crisis 2014 he took an interest in the Fallout minis.
This resulted in him creating a kit of a vault entrance and as luck would have it, I got my hands on one
The kit is one A3 sized MDF board and has all the pieces to create this :
There is a second console in the kit (forgot to put it in when I took the picture of the inner side)
The wall and door are built up from 3 layers and these need to be aligned perfectly for a good fit. Despite my efforts I had some minor displacement and thus needed to sand those pieces to ensure a good fit, specially when there are some coats of primer and paint on it.
Pretty sure some terrain geniuses on here would manage to put this into a massive board but I'll be happy to throw some paint at it and use it as a display.
Now, the not so good news. This is no commercial kit. (yet ?)
However, I can direct you to Michaël's site (in French) where there's lots of other cool stuff to be found :
http://decoretconception.jimdo.com/I'll also mail him the link to this thread should he want to pitch in