Churchward types were once offered under one foundry, and as part of a chank.com font pack, now they are being offered by "bluhead studio"
Apparently they aren't serious about selling their fonts, as the website offers nothing except a
few samples, and these link you to myfonts, which probably will keep saying you can't buy them.
I expect you must email them to get anywhere -
bluheadinfo@bluheadstudio.com
The fonts from this designer seem pretty decent, it's a shame they aren't getting spread properly.
On the other hand, almost all of the sample replacement fonts offered here would work and 99.9% of customers wouldn't know the difference. The other .1 percent would know, but wouldn't care