When I bought my Backroad frame, Lynskey wanted over $300 for their fork that was fitted for disc brakes. I had an old LHT fork in the basement for rim brakes. The axle to crown length and the fork rake (or offset) was close to the same, so I decided to use the LHT fork. Handles well. I painted the fork black after stripping off the decals.
I also tried a Soma fork (also rim brake), and it worked fine too. I could not tell the difference between the Soma fork and the LHT fork. This is the fork I tried.
https://www.treefortbikes.com/Soma-F...oss-Fork-Canti
The Soma fork had low rider rack mounts on the outside of the fork blades, but not on the inside. For most things that is not a problem but if you wanted to use a rack like a Tubus Duo, the Soma fork would not work.
All of the photos above were with the LHT fork. The LHT forks have changed over the years, mine was a 2004 vintage.