Not exact, but this will get you really close if you use sketchup or can import:
Ford Transit 2015 Long Wheel Base (148WB), Extended Body (EL), High Roof (HR), Single Rear Wheel | 3D Warehouse
This is a model I put together for planning my Transit Van conversion. I took the dimensions from the Sportmobile resources, and did my own measuring in my van. It is very close dimensionally.