940 rebuild... should I?

I'd actually probably laugh out loud if I could pull that off with mine. I've watched a few videos and it seems like the hardest part of pulling the valve body is getting the parking rod in and out. Any tips for that?

Just have the wheels in the air or the driveline disconnected so you can turn the driveline while you jam the park rod back through the pawl.
It allows the cogs of the park assembly to line up so the pawl moves out of the way so the rod end can go through.
It's not hard.
You can also pull the rod clip and disconnect the rod from the VB if you would rather.
Personally I think that way takes longer and is more of a pain.