a few 4 speed conversion problems

Since your hump is loose, you can almost put it where-ever you want. I put my stick back between the buckets, and up next to my thigh, where in neutral, my arm is just forward of hanging straight down. No more reaching for third gear. Now with my back against the bucket, I can ram it home and have not missed a shift since 2004.

A-bodies A833s have a short tails, maybe 10 or 12inches? and only ONE shifter mounting pad .
As to the angles; I'm going from memory and haven't looked at mine since 2004, so here goes
The adjuster ends go on the stick end.
on the box; they only fit one way; the 1-2 rod next to the case and the 3-4 on the outside of the lever. That's the only way they won't rub. And the reverse rod only fits one way
At the stick; the outboard rod (3-4) comes in from the outside, so the pin is pointing towards the trans. I don't recall the inboard(1-2), but it probably goes between the levers, leaving room for the reverse on the inboard most slightly longer lever.
The reverse rod hangs under the crossmember.
As to the short levers; Two of them have more or less vertical slots, and the reverse has quite a different angle and may be a lil longer I forget. The other two install on the studs and I think end up vertical when properly installed. The 1-2 may be flat but I'm pretty sure the 3-4 is offset.
That's the best I got