Re: inner tie rod tool
No, I didnt hold it, really there's no need to since its already bolted to the subframe. Really, overall, its not that difficult a job, dont let people make you overthink the work (dont mean that offensively, just saying I know you are trying to gather all the info you can and make sure you do it right). The hardest part for me was getting those blasted clamps off on the boots for the inner tie rods and then clamping them back down.
I have two suggestions for you in that regard. Worm gear clamps or zip ties. I dont see there being enough room to get the CV clamping tool that would be needed in there to put back on the OEM style clamps. If it were off the car, then sure, otherwise its just too cramped, so just use zip ties or some type of regular hose clamp to secure the boots in place. They are essentially just a dust shield.
There is also some kind of breather tube in there, though I do not recall what it is attached to. I want to say it was attached in some way to the dust boots but dont quote me on that, but make sure it goes back to where it came from. I didnt think of that earlier (been a while since I replaced mine) but it would not have caught you off guard or anything like that.