2007 GMC Sierra 3500HD SLE Regular Cab DRW LBZ Duramax 4x4

2007 GMC Regular Cab Dual Rear Wheel 3500HD LBZ DURAMAX 4x4, oaded SLE, 60k miles, ERY RARE TRUCK!
Truck is clean for a 2007 both inside and out. The bed has a couple minor imperfections (small) from the previous side steps that attached to the rear wheel wells. The interior has no rips or stains. This is a 8 year old truck, t does have some minor scratches and dings. The body is rust free, he frame undercarriage has typical New England surface rust but overall it is above average condition for this area. I bought this truck a few months ago 100% stock from the original owner. This was bought as second truck/project and hasn't been driven much. Looking to sell due to building a new house. Truck runs and goes great, t's a blast to drive.
All modications done professionally less than 3,000 miles ago:
Danville BWM 3794 Stg 2 Turbo - $1950
Exergy 60% Injectors - $3200
WCFab 3" Y-bridge and Cold Side powercoated Candy Red - $700
Airdog 4G 165 Lift Pump - $740
MBRP 3" Downpipe - $120
MBRP 5" Exhaust w/ 7" Tip - $450
PPEI DSP5 - $550
LB7 Fed Pass Side Up-pipe - $200
LML Driver Side Manifold - $100
S&B Intake - $270
MA PCV Re-Route and Resonator Delete - $120
Transgo Jr Shift Kit w/ new fluid and filters - $400
22" Fuel Maverick Dually Wheels w/ Nitto 305/40 420s - $3800
3" Belltech Drop Shackles - $100
Access Tonneau Cover - $350
Smoked LED Cab Lights and Bed Marker Lights - $120
15% Tint on Side Windows, % on Rear and 45% on Windshield - $250
The truck has been tuned conservatively due to the transmisson only having a shift kit. Never slipped or limped. Transmission is the next step and will be done if the truck doesn't sell. This is a very hard truck to find, specially this clean and loaded with all available options! I am willing to sell the truck for $20,900 with only stock wheels and tires. I have tried to describe this truck to the best of my ability, encourage anyone interested to contact me at 207-615-7094 with any questions. CLEAN TITLE IN HAND.