Like everyone else, I looked and had lots of questions (most asked by others). I am curious (forgive me if this is common knowledge, I am a noob here), but where did you find the 'design your own' template? I searched, but no luck. I have been tinkering with crude drawings on graph paper, adjusting the copier zoom to make each square 4". Your template looks nice..
'08 E-150, std roof, wb, 2wd - basic cleanup done. Working on rough layout of 'furniture'.
Pretty much everyone will step on their 'willy' once in a while.
I usually make it a point to stop and put on my golf shoes first..