Whats the diff between these 2 hurst shifters??

Having rebuilt BUNCHES of each kind, I can tell you from experience they are the same.

I have never noticed a difference other than the stop bolts and the bolt on handle.
Some might have a grease zerk also.
I have drilled and tapped to gain the stop bolts and cut and drilled to convert to the bolt on handle many times. Hardened need a sharp bit.
If while you are rebuilding it if you notice the top pivot tube has lots of wear you can reinstall it in the reverse direction to wear the other side of the pin. Will take some of the slop and binding out of a wore mechanism. And save the cost and time getting a rebuild kit.
If I didn't have the correct rods I would use any old Chevy, ford whatever cheap rods and cut them up and make what I needed out of old tire irons. Been doing this for decades without a fail. I know it sounds crazy but they actually work better than the originals, less flexing. Have you ever bent a tire iron, your shifter wouldn't be able to bend one. And the steel they make them out of has memory like a breaker bar. So they return to shape even if you could bend it.
I better quit now before everyone figures out I grew up in a junkyard.