I've very little experience with polishing cass. optics and don't even have a spherometer so I have a question for the experts.
It seems the easiest option is to repolish the primary to fix the TDE and smoothen the surface but keep the overall correction as is. Recoat it and then repolish the secondaries using the startest to test or possibly test through the back. Use a comacorrector.
The other option is to refigure the primary to a parabola and refigure the secondaries to a hyperbola using startest. Is this feasible using the existing radii of curvature?
Here's the foucault.