Cost of adding a side entry door

[d082088]

Hi to all,

I'm slowly getting my idea, parts and pieces to get my project started. I've found many, many 28 ft nice box van bodies but none with a side entry door with steps like a lot of LKQ parts delivery trucks, windshield deliveries and such usually have. My question is, have any of you guys ever had a door like this cut into and installed on a box van body so I can compare costs of installing a door into a body or stretch a shorter body with a door already in it. Any help or $$$ figures is greatly appreciated, I've attached a picture of the type of entry door I'm speaking of. The body I'll be using will not have a over the cab "attic", more like the 2nd picture shows because the truck is a condo sleeper.

 

[Bob86ZZ4]

Looks like the door in the second picture is a slider type. I'm guessing that might be more expensive. You can pick up a rv type side door pretty cheap at the rv surplus places. Some framing inside shouldn't cost much.