2014 Chevrolet express 4500 shuttle bus

It is 2014 Chevy express 4500 with 6.6L diesel engine it has 167k miles. 

I have records of all the repairs done together with maintenance and when was it done and at what mileage - full service record 

-Floors are 1.5" Ridged foam on top of marine grade plywood with 2x2 supports and 3/4 floor plywood 

Undercarriage is spray foam applied with rust preventative coat. This was done for additional noise reduction as well as body seam sealing. The underbody was sprayed with a tough, pliable, corrosion protectant material, which incorporates a sound-deadening property. 

Walls has been foam sprayed + we added 1,5" Ridged foam boards. 

Celling is spray foam + 1.5" fiberglass insulation + reflectix and seam taped everything. 

Bus has:

-75 gallon freshwater tank 

-2x7 gallon grey water tanks 

-12.8 gallon propane gas undermount tank

-840 watts of premium solar panels, 

-412Ah Lithium SOK 

-4 gallon Bosh water heater

-Victron 12/3000w inverter/charger

-Victron 75/150 Solar charge controller -Victron 12/12/30 360w B2B

-Victron BMV 712 Bluetooth shunt

-Victron Lynx distribution panel

-Victron VE.Bus Smart dongle

All cables are oversized with premium marine heat shrinks and either best welding pure copper cables or Marine grade. 

All lugs used are pure tinned copper - marine grade.

-Dometic CFX75 fridge/freezer (this thing barely takes any power and can freeze up to -22C with Bluetooth control) 

Motorized grey water tank valve operation 

Custom led lighting with touch dimmers and metal rocking panels switches. 

Many wall outlets with high powered USB ports. 

On/off switches for pumps and heater 

Water tank level sensors 

Premium stain/scratch/mildew resistant paints and stains. 

remote controlled door open/close system. 

Brass/magnet latching systems on all cabinet doors 

12v floor radiant heater. 

Hand made premium foam couch cushions with stain proof materials, 

Hand made heat resistant window curtains with magnets to hold them together 

Premium memory foam queen size mattress with gel infused top layer to cool you down during the night. 

Premium vinyl water proof flooring with good underlayment 

All electrical work was done by professional electrician 

Birch 3/4 custom made cabinets. 

Couch converts to L shape or another bed 

2 roof fans 

Laguna table leg 

Backup camera 

Roof was sealed and tropicool painted 

There is one line of propane gas and 12v ready for your choice of heater 

Bus length is about 24' 

Added a hitch with electrical and a Panasonic car play unit with built in DVD player. Also comes with brand new cassette toilet.