TracKick to TracKick swaps will work.
After a lot of examination with my Samurai and TracKick fleet, I do not recommend Samurai to TracKick hub swaps.
They require precision modifications involving the use of machining equipment not available to the average backyard mechanic.
If those modifications are not done, you risk creating a gap at the inside hub seal - the one on the back of the hub assembly where the CV shaft enters the hub - that will easily let dirt/water/mud into the hub bearing. This, of course, wil drastically shorten the bearing life and result in you spending lots of money!
It is FAR CHEAPER to find a set of TracKick hubs (manual or automatic) for your TracKick than to "adapt" Samurai hubs for the purpose.