I could not get the pic's to open
But ...It is a VW Autostick they were built from 1968 - 1979 ( I think ). In Bugs and Karman Ghia's only .
Parts for these are hard to find ! And the trans is the easy part.
The shift linkage looks just like the manual trans linkage except for the switch at the bottom of the shifter.
The way the clutch worked There is a electric vacuum valve that opened and operated the vac. canister . The switch was on the shifter ( you put your hand on the shifter and it would drop about 1/4 of an inch ) . and operate the switch.
To make this work you would need .... a Double oil pump ( one for the engine and one for the trans. )( bolts on in place of the regular oil pump). the auto trans fluid bottle , the vac. tank , the vac. valve and a bunch of vac. plumbing .
I Put one of these in a VW Powered trike , ( No need for a clutch hand or foot leaver ) I added a switch to the shifter that you pushed with your trigger finger .
I don't think you would be happy with it in a sandrail . it wont spin the tires ...
You could put a regular man trans in it by just removing the trans a putting in the manual box and a clutch cable and a set of pedals ( and the tube for the clutch cable ) or hydraulic clutch pedal .
Hop this helps.
-- Bill