Have you talked about any of these ideas with any actual high rationality Catholics?

I agree in a relatively straightforward way with their cautious eschatology about Judgment Day and the Second Coming of Christ, which I see as straightforwardly mapping onto thinking about a technological singularity and taking seriously its moral implications. Whether or not they were right by coincidence is sort of besides the point, as their emphasis is correct either way. (At some point I would like to talk to the Church to see if they're interested in funding FAI research; unfortunately I'm not sure how competent the modern Church is, nor what factions of it would be competent. Traditionally the Dominicans are impressive.)

Somehow I get the impression that they wouldn't agree with your interpretation.