Zeist Paper models has the one that Thomas Pleiner designed. The Finnish Nuclear Power Plant by Areva. Price is 30.50 Euros (plus postage from the Netherlands). 1:350 scale and an incredible 2900 pieces. There is a complete interior. This may not be what you are looking for, but you can find it here:
https://www.zeistbouwplaten.nl/ if you go to the Architecture tab, then click on Moderne Architectuur, and look between Le Corbusier and Dover.