In my honest opinion. Looking for a unicorn... Understanding you are after a 20+ year old turbo that's journal bearing in good condition at a cheap price; it doesn't equate. The ct20/26 is a journal bearing turbo even when rebuilt, at this age and wear is still not great; that is unless you change the entire chra, but then you are left with an old style housing. Rebuilding professionally leads to a cost similar to an off the shelf better designed housing and ball bearing turbo. You have to pay to play with turbos.
Best of luck,