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I don't think there's any difference in dropout design between forks that originally had a solid, nutted axle and forks that were originally used with QRs. You're right to be cautious with disc brakes, but my understanding is that QRs can actually provide more clamping force than nuts [not true, see tester's post below]. Best to go for an old-school QR with a hidden cam, rather than a lightweight one.
Will a qr wheel work in a front fork dropout designed for solid axle bolt on wheels?
Disc brake, I'm concerned the wheel might shift under heavy braking.