original set screws for 'bridge' loom clips on scuttle top?

[JonE]

Andy, as someone who spent most of Prescott staring in through windows in the carparks rather than poring over the twin cam, I think the exact answer for rivets is just persistence! This matters not a jot as it's going on to a special, but Dave's answer is the kind of one that satisfies for me and I'll note that down somewhere... thanks.