u/Fletcher-Jones

Trying to figure out dimensions for building a sleeping platform and storage in the back of my extended cab. I went to measure the wheel well but found it difficult to get anything exact due to the curves. 8” was my best guess but was curious if anyone has anything more specific? If my platform is 8” tall from the lowered grooves of the bed floor, will that let it sit up over the wheel wells?

Ive poked around with out much success, but anyone have a detailed blueprint or dimensions diagram for the Ranger 6’ bed?