Alright got a quote on a 4inch lift from opposite lock. This was bout 4k all up. I noticed it doesnt include drop boxes will i still need them?

2 BMX1047/4 Tough Dog 45mm Adjustable $550.00
Shock Absorbers 4&5' lift Front
$275.00 EA GST 2 BMX1206/4 Tough Dog 45mm Adjustable $550.00
Shock Absorbers 4&5' lift Rear
$275.00 EA GST 2 TDC734/4H Tough Dog 4'' Lift Coils $160.00 EA $320.00 GST 2 TDC732/4 Tough Dog Coil springs GQ GU $320.00
4" REAR up to 300kg
$160.00 GST 1 / steering damper adjustable or $300.00
return to centre
$300.00 EA N-T 1 TDUK-041 Urethane Bush Kit Radius rod to $65.00
chassis
$65.00 Kit GST 1 TDUK-050 Urethane Bush Kit Radius rod to $185.00
diff
$185.00 Kit GST TDUK-051 Urethane Bush Kit Panhard rod $65.00 Kit GST 2 TDUK-052 Urethane Bush Kit Radius rod to $300.00
chassis
$150.00 Kit GST 1 TDUK-054/3 Urethane Bush Kit Castor $230.00
bushes 3 degree
$230.00 Kit GST 1.5 FCLA press out castor bushes /press $142.50
in new offset castor bushes
$95.00 EA GST 1 TDSP-004/2 Transmission Spacer suit coils $110.00
spring vehicles
$110.00 Kit GST 1 TDBH-001 Tough Dog brake hose kit suit $120.00
big lift in Nissan Patrol
$120.00 PR GST 1 FCSC Fitting - Suspension System 4 x $255.00
Coil Springs & Shocks
$255.00 0 GST 1 TDPR-004 Adjustable Panhard Rod Front $260.00 Kit $260.00 GST 1 TDPR-005 Adjustable Panhard Rod Rear $260.00 Kit $260.00 GST

This is also a kit from superior engineering for $3500.
2 x Coil springs front
2 x Coil springs rear
2 x Front 45mm Tough dog Big Bore Adjustable shocks (BMX1047/6)
2 x Rear 45mm Tough dog Big Bore Adjustable shocks (BMX1206/6)
1 x Tough dog EXT Steering damper (EXT5000)
1 x Front adjustable panhard rod
1 x Rear adjustable Panard rods
2 x Drop box's (Instructions)
2 x Extended brake lines
1 x Extended diff breather kit
1 x Extended brake proportioning valve bracket
2 x Lower control arms
1 x 4140 H/D adjustable Drag Link
2 x Coil drop out cones
2 x Coil retainers
2 x Damper brackets.

What are peoples thoughts.