To help with all the questions here goes spec sheet of a similar build from Starwood Motors on this Custom Jeep Wrangler:

Starwood Customs is excited to present our most ambitious project to date -- the Bandit, a mega-build recently featured at SEMA Las Vegas. SEMA is all about showing the automotive world what you can do, and this Starwood show-stopper definitely got the job done.
The Bandit is a crew-cab JK truck build which features a full 48 inches of frame and body extension, professionally crafted here at Starwood to be the ultimate modern Jeep conversion. Chief among the particular Bandit's many hi-spec mods is a 7-liter HEMI Stroker engine with Whipple supercharging.... this monster produces upwards of 700 horsepower and is not for the faint of heart!

See More Photos http://inventory.starwoodmotors.com/web/vehicle_photos/14736728/

The Bandit body conversion includes:
- 36'" Frame extension
- Fully boxed framerail extensions and cross members for added stability and rigidity
- Reworked cab enclosure and Freedom Top (fully functional)
- Sheet metal rear bulkhead
- Long bed pickup box with sheet metal outers
- Sheet metal rear tailgate
- Designed to accept most aftermarket JK bumpers, and OEM or aftermarket fenders flares The exterior of this Jeep has Starwood Motors signature finish that is infused with DuPont™ KEVLAR® Pulp. Impervious to the elements and guaranteed for life, this Jeep will be able to tackle any terrain without worry
-Body/Top/Truck Bed/Fender Flares/Interior/Door Jambs/Roll Bar/Engine Bay/Windshield Dualie Brackets/50” Light bar brackets: “Military Tan”.

Engine/Mechanical:
- 7.0 Hemi
- Forged Internals
- 2.9L Whipple Supercharger
- Custom Exhaust w/black tip
- Powdercoated engine components in Bronze Burst
- Rebuilt/fortified transmission
- Fore Innovations hi-output fuel system supporting up to 1,200 HP

Suspension/Axles:
-Lift: TeraFlex Long Arm, 6" to 12" adjustable, components in Bronze Burst powdercoat
-Shocks: Fox Racing, Factory Series Reservoir
-Front: Synergy Suspension Rear Extended Shock/ Coil Over Custom Shock Towers
-Rear: Synergy Suspension Rear Extended Shock/ Coil Over Mount Kit
-Dual Steering Stabilizer: Fox ATS “thru-the-thru”
-Currie Anti Rock sway bars in Bronze Burst powdercoat
-Ford 9” full floating axles in Bronze Burst powdercoat
- 5.38:1 Gears

Brakes:
-EBC Rotors, Calipers (Powdercoated in Bronze Burst)
Wheels/Tires:
-Wheel Brand: Moto Metal Wheel Name: 962
-Wheel Size: 22x14 Wheel Finish: Black/Machined
-Tires: Nitto Mud Grappler 40x22"

Audio:
-OEM Navigation head unit
-Flush Mounted Back-Up Camera
-Speakers:
-Subwoofer: custom enclosure under back seat.

Leather:
Grade: Nappa Style: Macho
Colors: Black Body W/ Horizontal Amaretto Inserts and a Black Vertical Insert Down Center w/ Dove Inverted Piping and Dove Heavy Stitch all over

Bumpers/D-Rings:
-Fab Fours Full Metal Jacket Stubby Winch Bumper w/Grill Guard
-Fab Fours Rear Bumper w/ Tire Carrier
-Warn ¾” D-Rings Black 7/8 22mm Pin (front and rear)
-Powdercoated D-Rings in Bronze Burst

Winch & Components:
-Warn ZEON
-Fairlead: Warn Black
-Factor 55 Red Winch Line FlatLink Red
-Factor 55 HitchLink Red
Lighting:
-Angel Eye LED headlights
-RECON Smoked LED Tail Lights part
-AEV 3rd brake light
-Rigid Industries 50” LED light bars on front; double-stacked Rigid Dually LED spots at windshield; 4 Rigid Dually LED spots on front bumper
-White LED undercarriage lighting
Side Steps/Rock Rails:
-Amp Power steps
Hood/Latches/Grill:
-Lifted Performance Hood
-Rugged Ridge Black Aluminum Hood Latches
-Jeep Grill in Black Satin
Fender Flares:
-Metal Cloak Stepped Flares *outer tube in Satin Black

See More Photos http://inventory.starwoodmotors.com/web/vehicle_photos/14736728/