A full dual filter FASS pump is $750 not $2500.
That or Airdog or a little engeniuty are what a 24V needs to not starve the IP. Although I personally don’t like the lack of reliability and short service life out if FASS.
Yes add 2s oil. But if you don’t, nothing will go wrong. Except for potentially lower injector service life.
Regarding the springs, SD will steer you straight. Although I’d get a camper first then decide what to do. That’s a lot of $ to dump into suspension especially for a non DIY guy like yourself.
In all this you don’t say if it’s auto or manual. There are things to do with either of those and that model as well.
