Just plugging in the numbers that you quoted by @GrabThatBlue... no guarantees...
7D0-05-01 2186 3000 0014
7D0-09-02 2064 5500 0DBF
720-03-01 6102 6C00 00F9
720-09-01 2042 1544 9905
706-01-01 0E40 0017 0236
706-02-01 6A67 0000 00A1
* these will change based on changes to the line (checksum)...
I have seen many vendors selling wheel and tires sets specifically for Mustang... and still using S550 sensors which are not compatible with S650. Check what they actually sent you.
The stop the hop kit shouldn't affect the caster... stop the hop is in the rear, caster is in the front. That variance in the caster is pretty normal... and not really adjustable... not really an issue. Camber in the rear can be adjusted (and should be)... did they try that at all?... it looks...
Apparently, lithium batteries are not recommended on cars with smart charging and a BMS system... our S650's. The smart charge strategy for an AGM battery will not sufficiently charge a lithium battery.
I have used a few bottles of that over the years... good stuff. There may be easier and better stuff out there now adays... but the price is hard to beat.
I don't mind buying slightly used "daily driver" cars, but performance cars I prefer new... you never know how they were treated. Many years ago, I was looking for a used Camaro, after a month of test drives, I ended up buying new as everything I drove was beat on... especially the manual...