BAK Roll Back Tonneau Cover...Will it fit

I have a friend selling his BAK Roll Back Cover, it is in great condition and he is selling it dirt cheap if I want it
The problem is it came off his 2006 Nissan Frontier King Cab Long Bed.. So I am unsure if it will fit.
Does anyone know if it will fit?
He lives about a hour away so its not to big of a deal to go give it a test fit but I wont be able to get up there for at least a week so if it wont fit I'd rather have him throw it on craigslist and not waste time waiting for me.

 

wont fit, they are 2 different part numbers.

 

I know they are different part numbers so its not the one made for my truck but Im wondering if it will fit...
My bed is only about an inch wider and the same length so depending on how it secures to the truck bed and how much room they leave for adjustment I would think it would work... Im hoping to find someone who has tried this or similar.