So I corresponded with Steele about the possibility of them doing windlace in the Tan-grey color, since they seem to have the correct profile. The closest I got was them saying if they did them in white (no idea why they mentioned that color ???

) was they'd have to do a 1000 ft run "and probably couldn't sell it all." They didn't even say how much they'd have to charge if they did that.
They did give me some options.
Chevy's of the 40's, which looks just like the stuff I got from Jim Carter as far as profile. Also Restoration Specialties (their item 99007GRY-WS, listed for '55-'56 International trucks), which looks like a closer profile, but they want $168 for a set.
I plan on sending a sample of my original to Restoration Specialties to check the profile of their product to see if it would fit a Chevy.
I'll also send a sample to Steele to confirm their profile is correct and get a better response for whether they can match the color and what the price might be if they produce 1000 ft (which is 50 sets.) It sounds like we might have about 20 interested at this point (maybe not all of them interested in the gray-tan color.) so that might convince them that they could eventually sell those 50 sets.