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Trek does look interesting. Probably not with PressFit though.
Diverge frameset but £3.3k
https://www.sigmasports.com/item/Specialized/S-Works-Diverge-Road-Frameset-2018/FZBKHave no interest in paying a Ti premium. They all snap anyway, even if you don't have a car drive over them. :)
Allcity, also never heard of them, looks like the Bombtrack one. Definitely prefer the cable routing on the Mason. Need to try and work out if they will fit.
Trek Checkpoint ALR looks fine. Though so does the RTD. Trek has pressfit bb.
Canyon Endurance Al has pretty much all that too, but they don't seem to sell that as a frameset. The same with Diverge.
Curve Belgie would fit too, but it's rather pricey as they only have it made of titanium. Kevin doesn't have holes for wires, I think, and is heavier too.
Allcity Cosmic Stallion has 15mm axle fork, but otherwise would tick all the boxes.
Those and Strael were some of what I was looking at a year ago when I bought my Sibbo(has QRs and is now discontinued) and again this summer when I got a dent on it, but that got repaired.