The 4 banger lacks power on the highway. I'm unsure about the AC Coil pack. And the 8k for a TJ sport is about right, you might be able to talk someone down some. Do you plan to lift it or add larger tires?
"Shiny side up, Greasy side down"
"Where's the shiny side?"
"Brown side up, Greasy side down" - Piper54
Vehicles: '91 YJ (Sold), '90 Nissan 300ZX N/A. '94 YJ Sahara Edition. 2.5 inch Trail Master Suspension Lift, 32X11.50X15 BFG AT T/A KO2