THIS IS THE TOTAL COST FOR A SLIGHTLY RAISED INSULATED FLOOR USING HOME DEPOTS LIFE PROOF VINYL PLANK FLOORING, 3/4' PLYWOOD, MULTIPLE WOOD SUPPORT BEAMS AND KILL MATT TO HELP REDUCE NOISE AND HELP FURTHER INSULATE THE VAN, WE USE LIQUID NAILS WHEN WE LAY DOWN THE 3/4' PLYWOOD TO ELIMINATE SQUEEKING OR NOISE WHEN THE VAN IS IN MOTION AND USE R-19 INSULATING FOAM BOARD UNDERNEATH, WE ALSO CUSTOM MAKE SOME MARINE VINYL WHEEL WELL COVERS YOUR CHOICE COLOR,  THIS IS FOR 177 WB VANS OR COMPAREABLE SIZED VANS.