Window seal replacement?

[Charlie20]

I just got a price from the local MB dealer for the bottom squeegee-type seals on the left front window: about $150 for both the inner and outer ones. This is obviously a ridiculous price, and I would go without before paying it. In looking at them, it seems that there may be some sort of generic alternative. I have done a search on this forum and not come up with anything.
Does anybody know of such an alternative? Any help would be greatly appreciated.