Identify 727 trans

Not yet but I may have a good /6 727 out and collecting dust here soon if I can decide which way I want to go on my truck .. 85 d150 with a/6, this 727 is still in my truck, at the moment. This 727 lockup is the original trans my truck was born with.
I have to decide between leaving it as is or swapping in an 833 OD or swapping in an a500 with the adapter plate that I also have....
When I was younger there would be no choice the stick would have already been in there.
But at 57 and feeling nickeled and dimed like an old truck, and basically feeling like I need an overhaul on all the joints of the right side half of my body, it's a tough decision to make.
I have everything on hand for whichever way I decide to go. Which makes it even harder to decide.