It took a little hunting, but I found it:

https://connect.invaluable.com/stout/auction-catalog/MAY-5,-2018-WEST-MIDDLESEX,-PA-HO,-On30,-O-G-GAUGE-PLASTICVILLE-ARTWORK,-POSTWAR,-MODERN_YZKSFD4B1L/?keywords=on30

Unfortunately my budget didn't allow when  this auction was live, but it's a good reference for you.

Scroll down the page about halfway, there's a few tenders as you describe, how lucky you are if that's what you have :)

Thank you very much for the link, I had never seen his site before. I have drawn up replacement parts in CAD myself and got them 3d printed, but all the curves in these lenses would make it difficult to draw up correctly. It would be far easier to just buy them, as long at that's an option. If not I will definitely keep that site in mind.

Hi,

I notice Bachmann are going to make eggliners. I assume you have purchased the moulds, dies etc from Aristocraft? If that is the case I have been trying to source the little LED housings / lenses for two custom eggliners I am doing; I broke mine trying to remove them for painting. Would I be able to buy two or three sets from you? I am trying to have them finished by Christmas (as gifts). Any help would be appreciated.

Thanks,
Daniel.