Lighted cabinet price check

I think you need to provide overall dimensions to get an honest opinion. If it's a 2x2, it'll price much differently compared to a 8x16. Also single or double sided, wall vs pole, if it is a single sided polesign it'll still need a saddle), prepainted black or custom colored.
But in all honesty, I've never bothered to crunch the numbers from a $/sqft on such things, too much variety.

 

if this is that 6x22 you were also asking about, and if it's a single pole install, it's probably made from steel due to the large span, extra bracing, with a retro frame added over that. Most wholesalers also charge extra for oversized products just because it's a 'headache' on their end in all forms of logistics, from needing more than one dolly and one guy to move the sign, to needing a loading dock or crane to load the sign. Just sayin'

 

Like JBurton said, can you provide more info for us to help, cabinet only on existing pole are you providing stub pipe as well? Size?illlumination lamps or LEDS?