Pulling TH350 Questions?

[YourBuddy'sTruck]

Hello, Everyone.

I have to pull my TH350 to rebuild it. Never pulled one before.
It's a 1970 C20.
I've a 350 pushing a TH350 into a Two Piece Drive Shaft feeding a 14Bolt FF Axle Rear End.

Here's my Step by Step with Questions added....

1 Remove Battery and Chock Wheels as I'll not be in park.
2 Remove Drive Shaft (mark it for proper balancing at reassembly)
Both Shafts and Center Support? Is it possible to leave Yoke in the TH350?
Or pull it and catch the ATF?
3 Disconnect Vacuum Line, Speedo Cable, Shift Linkage, Fill Tube, and Cooler Lines.
4 Disconnect from Cross Member.
5 Support TH350 with Jack and remove Cross Member
6 Remove inspection cover
7 Separate Torque Converter from Flex Plate
8 Unbolt TH350 from Engine and lower to remove

I'm thinking that with the Press/Hammer needed to separate the U Joints, there is no way to do that under the truck?
If that's so, do you install the TH350 Dry?
When do you add fluid to it? And what are the steps for doing so?

And for a really dumb question...
Can I do this in my driveway without a Lift? Can I just jack the truck up to get the TH350 and Floor Jack to slide out?

Please excuse my newbie questions, but I do like learning these things and the work is usually fun once you clear the swear cloud.
I'll be trying to tackle this over the weekend as the weather is finally nice here in Ohio.
Thanks in advance for any input.
Stay Safe!