Get a window and do it yourself. Takes about 10 mins with some soapy water and some small rope.
Ill call the local wrecking yard tomorrow to see if they have any decent ones.
what year b2000's have the same window?
86-93 are the same and a slider gasket is the same as non slider i know that for a fact after owning three with sliders that i changed out myself and it looked stock i got two used ones from a glass shop for $50.00 local junk yard whats $50.00 for one with the gasket