You cannot use either wheel set you list on a Straggler frame. Both of those use thru axles and the Straggler requires quick release wheels. BTW, if you go with the Straggler, be sure your front quick release is kept TIGHT and the "lawyer's lips" are in good repair. QR fork dropouts are not a good match for disc brakes unless the precautions are followed.

One alternative, and one I just built up for myself, is to use the Surly Midnight Special frame and fork which does use thru axles and I used the 700c WH-RX570 wheels on mine. The MS uses flat mount brakes and I used TRP Spyre mechanical discs but any flat mount hydraulic caliper will also work. The MS requires a 44mm headset and Cane Creek does make them. Mine was a Cane Creek 40, upper was a ZS44/28.6 and the lower an EC44/30. I've been very pleased with my MS and I think it would serve your needs too.