Little update. After Consig pointed me to Arizona Custom Knives, I found a ESEE-3 mil for short money. Simultaneously, Stray Round was hot shit enough to loan me a JG3 to try.
Good news, bad news. While I thought the 3 was what I wanted, it just doesn't feel right in my hand. I think it's something about the straight line of the handle/blade. OTOH, the JG3 is the shit. Fits perfectly, and I did some backyard bushcraft with it tonight and it kicked ass. I will almost certainly be getting one.
If someone wants a brand new 3 mil for short money, let me know.