It looks like a challenge but it's doable. Looks like einkorn, spelt and emmer are all in the same boat when it comes to Hulling. Farmers growing the stuff are spending a lot of money to purchase machines. This is all I could find for the backyard enthusiast.
"A third dehulling option, which is better suited for smaller-scale growers and those who want to experiment with production and test markets before investing in expensive equipment, is to modify or use existing equipment or to build a dehuller. Several growers report success in dehulling ancient wheat using burr mills in which one or both of the burr plates is replaced with rubber—essentially turning the mill into an abrasion dehuller. Debearding and roller machines can also be used to dehull. Finally, a couple of small-scale dehuller prototypes have been built for which design and construction information is available. (See “Additional information” box.)"
excerpt from this article.
Dehulling Ancient Wheat
It looks like this guy modified his grain mill to dehull.