Mr. Hankins,
I've been admiring your work in the Exchange section for some time now. You make some fine knives.
As to the question in your signature line, i believe Webshots makes a nicer viewing experience. It's easier on the eyes overall, and allows you to provide better descriptions on the knives. I'm glad you added that gallery, i really like it.
As far as a Hankins Khukuri, with a HD Kydex sheath...

I think it's something you should try, and it would be most interesting to see. The downside, is labor, material, and end cost.
Uncle Bill's Khuks are so downright inexpensive, i can't even believe it. I think you crafting a tribute to the Khuk in modern materials (steel, handle, sheath, etc...) would be very cool though. If Cold Steel can do it, you can most definitely do it better!
For you to choose one of the H.I. types, well... that's the running joke around here. No way can you just "choose one". I'm new to these myself, so i can't offer much in the way of selection advice. I know alot is going to depend on your size, it'll be hard to wield a biggun' if you're a 5' skinny guy. You mention liking the Uncle Bill Special, so why not start there?
For me, the larger and heavier the better. I'm a big knife kinda guy. For defense purposes, i'd look for something more in the middle.
The best advice i can give ya is to familiarize yourself with styles, then try 3-4 various ones till ya get it right. Go here:
http://www.himalayan-imports.com/faq/physics/Khukuri_Dynamics.html
that makes "seeing" alot easier, but it's still not "feeling". For the latter, i think you should phone Uncle Bill. I'm sure he will square you away.
Hope this helps!
btw, why don't you come join in our
WW2 model passaround? I'm next on the list, and you could have it in your hands within 2 weeks or so.
Free opportunity to give a user a whirl, go hack a bit of wood, or a new path, and see how she fits ya?
Come on down!
http://www.bladeforums.com/forums/showthread.php?s=&threadid=262910