In the good old days, well 40+yrs ago, I called at the factory on the off chance to pick up some bits and bobs for my first Mog, 1963 +4, the stores man said 'Sorry sir it might take some time as we're stocktaking but if you'd like to amuse yourself around the factory for an hour or so we'll see what we can do'. Wonderful people. Incidentally that +4 cost me £500!! via Exchange and Mart.