Three-on-the-Tree with 273 4/bbl?

I seem to rember my 3 on the tree 63 Econoline van, you had to pull the shifter toward you to put it up into reverse. So that would suggest that there is a spair position to be had by adding the correct levers/ gates.

(Dots are place holders)
R......2
|........|
---------
..... |...|
.....1..3