I'm interested in building an all-road/gravel/light touring bike with parts from a donor bike to keep costs down.
I've considered frames from Crust, Wilde, Otso, Rodeo, Breadwinner, Surly, Panorama, & a couple others. Just curious as to what else might be out there.
So far, the top of my list includes the Wilde Rambler SL and Panorama Anticosti.

Here are my requirements.

+ New from a North American seller as a frameset.
+ Steel
+ 700c x 44 (at the very least, but would certainly welcome bigger clearance.)
+ Able to accomodate 2x GRX drivetrain.
+ Under $2k
+ Prefer a steel fork with mounts-a-plenty.
+ Upright leaning geometry.
+ Disc brakes.
+ Drop bar

What can you recommend that fits the criteria?