You can get drive shaft lengths from the parts book for your year and car.
BUT.... measure twice cut once.
Your stock drive shaft most likely is a 2 piece design with the rubber isolator between the inner and outer shaft. Those do not lend themselves to shortening very well.
If your shaft is a one piece then have it shortened.
The yokes are most likely 7260 on the driveshaft and the slip yoke. The 8 3/4 is an unknown. You will need to measure it to determine if it is a 7290 or 7260.
Your U bolts need to have the flattened section in the middle of the U or you will crush the housing tube.
Read and follow the torque specs or you will crush the housing tubes.
The stock e-brake cable will fit just fine assuming you had 10" rear brakes. I don't know if 9" rears used the same part. Check the parts book to see.
Put a 12" square piece of plywood between the housing and center section and the jack so the housing does not rotate as you lift.