What do I need to buy for my 727 swap?

Hey, as you may know from previous posts, I´m currently working on a 1968 Dart GT. The car had a 273 engine with a 904 tranny, but when my dads 1967 Valiant engine broke, he took the engine and tranny from the Dart.
Now, I´m gonna install a 340 and a 727 from a 1971 Barracuda.

The Dart has a console shifter and the Valiant has a column shifter. When they transfered the engine and tranny, I guess they used the original parts on the Valiant which had a 273 Commando and also a 904 tranny, so I guess it was an easy swap.
The problem is, I cant find the parts needed to get everything working in the Dart.
And also the 727 is missing a whole lot of parts. I dont know what parts I need to buy, and what parts are the same for both column and console shift so I can keep.

So, I´ll attach some pics so you know what I am working with:

This is what I have in the Dart, the shaft from the console and the speedometer cable:


This is how the original 904 looks like, with kickdown and shift linkage to the steering column (turned 180º):


Closeup and turned the right way:


This is how the 727 looks like. No linkage, no oil lines, not even a speedometer gear:


If I understand everything correctly, I need these parts, the swivel assembly, transmission control lever, lower rod, and gearshift control torque bracket:


I have found the Gearshift Control Torque Bracket at Mancini Racing. But I cant find the other parts (rod, swivel and control lever). Looking at the drawing and the closeup, it seems that the parts are the same, and the swivel assembly has a nut to allow adjusting the lenght of the lower rod.
Can I use these parts from the 904 with column shifting, on the 727 with console shift?


I tried mounting the speedometer housing, gear etc from the 904 on the 727, and it seems to fit. Do they interchange between the trannys?


Can I use the kickdown linkage from the 1968 273/904 on the 1971 340/727 with a Street Demon carb? Pictures:








So, to sum it up, heres what I want to know:
Can I use the linkage from the 904 column shift on the 727 console shift?
Can I use the 904 speedometer gear on the 727?
Can I use the kickdown linkage? Or do I have to bite the bullet and get a Mancini Racing Kickdown Cable Kit?
Can I use the oil dipstick tube from the 904 on the 727?
If I understand correctly, the 1968 tranmission used a single post neutral safety switch, and 69 and forward used three-post. Do I need to get a three-post switch and just hook up one of the cables to the car, to get it to work?

Thanks for reading this far, and if someone have any advice, I would really appreciate it :)