Take a look at keeb.io, they have a few full size splits https://keeb.io/products/quefrency-rev-5-pcbs-hotswap-65-65xt-split-staggered-keyboard

I know what we’re going to do today!

I (tried to) send you a message, there doesn’t seem to be a ‘Sent’ box on Lemmy so I can’t verify it sent successfully. Let me know if you didn’t get it.

It’s not really meant for soliciting, but Tindie is the closest thing I can think of what you’re looking for. https://www.tindie.com/ You could find something in the same ballpark of what you’re looking for and contact the person who made it and ask if they would be interested in doing custom projects.