Rubber parts

[AzDon]

I'm going to be replacing every piece of glass on my burb and was happy to see that all the rubber is available from LMC.....I'm just wondering if $300 for the pair of rear side window rubbers is the best price out there (anybody have another source?) I'm also looking for the four hinge pocket plugs that fill the rectangular pockets (not the round bolt plugs) for the barn doors I havent got.
I also found that Steele rubber products sells the rubber grommets that surround the upper hatch hinges...