I think DaveG is right: optics should be tested. Some are great, some suck, some are fair. Ya never know until you try them.
One cool feature is that there is a handwritten notebook/log of notes, starting in 1967 at the University of Md and then when it passed over to National Capital Astronomers and the Hopewell Astronomoical Society. It has dated and initialed entries with sometimes very funny but useful remarks on breakdowns, repairs, upkeep, and collimation, both for the mount (which we have kept in operation; it can carry a tank) and for the telescope. We also have some typewritten letters to and from Prof. Michael A'Hearn of UMd about the mount and telescope, as well as some receipts for the transactions I mentioned. The last UMd Observatory entry is a poem about them making the decision to sell the Ealing mount and scope and buying something more modern.
Anybody want me to reprint the poem? It's clever and funny. It also rhymes and scans.
Funny thing is, having read the entire notebook, I think I'm the first person who ever put the primary mirror on a bench for a Foucault/Couder zonal test. (I also did an autocollimation test, and a cloudy-night eyeball test on local radio towers).
I am pleased that my deduction that it was really an R-C was confirmed by Paul Valleli, and that my conclusions about the optical quality overall were confirmed by everything else I've read on this thread and on the other one.
That being said, I think that figuring convex surfaces is extremely difficult for most of us mortals - including me.
So I'm not going to refigure it. It's a project, not a completed, well-functioning telescope. The glass itself, already cored, is worth quite a bit, and could be refigured into a short-FL f/4 paraboloid if you wanted to.
Or, if you have super optical powers like DaveG, then you could merely refigure the secondary in autocollimation and then you'd have an actual Ritchey-Chretien worth many thousands of dollars!
BTW I recently re-coated the mirror nyself - bare aluminum, no overcoating. It looks quite nice IMHO.