price on boxes

i was trying to see how much its going to cost to get my system back and running and one thing i need is a custom box for a convertable. anyway i went to big named store and they were going to charge like 250-270 for a box. to me that sounds a bit expensive. does sound about right or are they over charging. if anyone knows wheres a good cheap place to get boxes? thanks

p.s. the box i want is just the one that is flat all across the trunk. im not sure if convert. can have different ones.

That sounds about right for an audio shop. PM me if you want a better deal.

Out here in Cali, that sounds cheap, a really reputable shop close to my stereo shop would charge probably double that for a good box, make sure on what parts it is using ect.... good luck