Good catch. I didn't read far enough, or notice the missing front drive shaft in the picture.
Just saw "this van was sold new the way you see it (minus the 4x4 conversion)" .
I just pull the slave cylinder off and hold it hose end up, while pushing the piston in a few times until bubbles quit appearing in the master.
It does take another person to watch the bubbles though.
Yeah, I wasn't too happy when I bought mine a few years ago, and it had small pockets instead of the rifle one. The cover I had in the late 70s had the long one.