I have some Tak parts for sale from a recent trade deal of my TSA120 for an FC100DC.
Tak 50mm Finder and mount: optically fine but cosmetically challenged with several chips on the finder from the screws. No cap.
Price $215 posted pending
Tak 1.25" prism diagonal: excellent condition
Price $120 posted sold
Last try, Tak 50mm finder with bracket $215 posted.
Moving the holder forward 2cm from the position pictured covers the worst of the scratches and the finder looks quite decent. Optically it's as good as new.