I’m going N-2 at the moment based on having moved and not needing two of the bikes that are currently built up (here’s one of them 🙂 – happy to split/do a deal 🙂 ).
For the retro (95) one (or at least, the frame), I reckon it’ll just go in the attic because it’s just not worth any serious money for anyone else despite it being fine.
For the 853 inbred, I’d rather it got some use as it’s a brilliant bike though as the classifieds sale doesn’t seem to be going that well, I may consider just keeping that frame too…
So basically same issue as the OP, things have moved on in terms of standards even if fundamentally the older frames are still perfectly good still.