I think it's a wonderful idea.
I get e-mails about every week asking if I carry a "standard" line of my old rusty/crustys.
Nope, I have the attention span of a knat, hard to make anything twice. I tried once to make two of something but I only got it half right.
I have sent many people to your site and would love to send thousands more.
Americans love the idea of owning something made by hand and made here with local materials.
I think it was Robin that hit on "options" . Maybe a unfinished sheath as one.
As we Americans love to accessorize...Make IT MINE, so I think an unfinished haft/ sheath option would be good, if you can stand the bombardment of questions you will get about finishing.
Go fer it, Brother and Sister, I'll support it a thousand percent with referrals......