71 extended cab

[68 50th]

I found this rough project truck on a swedish car ad site. The truck is a LWB from start but the owner replaced the original bed with a short step bed and extended the cab to fill out the space.
He says he got the inspiration to do this from a picture in an old truck/car magazine.
Just wanted to show you guys this, have you seen more examples of this convert?

He have put the original 8 foot bed on a chassis from a mobile home trailer and made a truck bed trailer out of it, it´s wisible in the background of the picture.
He wants (SEK 10,000) about $1,400 for the complete package, truck and trailer. He have the front bumper but not the grille.
He says it´s a 71 C10 but it have 6 lug wheels, wouldn´t it have 5 lugs?

Mats..