A833 Shifter lever help

Yeah those levers look to be tough to make work. The factory ones are offset in the inboard/outboard plane.The rearmost lever is offset to the passenger side, and the rod comes in from behind. The front lever is offset outboard and the lever enters from the drivers side. This arrangement allows the rods to so operate without interference. The clocking on the correct ones puts the levers vertical. And they are both the same length. Shorter levers are faster. On the tranny with the 3.09 low, the 1-2 split is pretty wide so a slightly longer lever there gives the brass a few more microseconds to bring second gear up to speed, as the engine rpm finally falls far enough.
The factory shifter will accommodate various length levers, within a narrow range.
I think Brewers has what you need.
Oh dear, I see you are in NZ
I also see you are being creative with the offset thing, and making it work. Your 1-2 lever will work for sure, it appears to be the right length. The 3-4 appears to be a little longer, but I'm pretty sure the shifter will accommodate that. Pretty sure, not 100% sure.
I see the holes in those levers are sized for bushings.How are you handling that?
I guess reverse is gonna be tough.....