How about a bang for buck thread to sticky for newbies.
Typical old street A body or a typical B/E body.
Owner just got it and it could use a full suspension redo. Price that out, then what would be suggested for 200 more, 500 more and what it would cost to to a full boat (XV or Hotchkiss, for example).
Cover when oil mods will be needed, when the current brakes, tires and wheels will have to be replaced.
Do the same thing with an LX chassis.

Kind of like the old DC formulas for 14 second to 10 second cars.