Nice writeup, thank you!!!
Basically what I did to fill it (I have AC gauges) but I did not pull a vac cause there was still some in the system, but apparently I have a very slow leak I have to find

I guess starting with a vac will tell me how slow of a leak I have.
So, how much did all the toyota parts cost you to replace? Do you have any part numbers? I'm hoping mine is just an O-ring, but I might just replace the dryer and compressor while I've got it all apart, to update to 134.