Still after years of ownership very few VW1000 pics around?
Time for a comparison the brighter 1 is a JVC X90 max brightness open iris both with new lamps.
VW1000 pic taken by a UK dealer in optimum conditions when new.
Looking closer I see the ceiling spots in some shots way overexposed unnaturally adding light to the room skewing the actual in room light.
When the above BD sample is along side the DIY mix the OP will see the differences and make a judgement call.
Today those DNP screens would be my choice.