I'm redoing my garage including swapping out an 8 circuit sub-panel for a 40 circuit sub-panel. All of my garage wiring is 12ga to support 20A circuits. Whatever you do DO NOT install 14ga wiring and 20A outlets. It is ok to use 12ga wire and install 15A outlets since the wire would be rated for...
I just seen this post today for the first time. I work on scissor lifts all day, all Genie, JLG, and Skyjack. If you need any future help hit me up. Pump would have been my suggestion based on your issue and what you knew.
I have and use daily a Fluke 375 amp clamp meter. If you need to be checking Amps on AC voltage up to 2500 Amps then go with a Fluke 376 which comes with the I-flex cable.
I don't know what you consider "affordable" but I bought my liner material from these people. It IS NOT listed on their website but they do have it and IIRC it comes in 2 widths and is sold by the linear foot. It is the same stuff that their fender covers are made from if you want to check those...
I bought my Snap-on TQR-600B on e-bay for $137.50 delivered. That wrench goes from 200-600 ft/lbs. You definitely don't want to buy it new as they are $940 now.