Front Window Weather stripping 90 FB

how difficult is it to replace the weather stripping on the front windows?
she gets alot of air leaks on her 90 FB.
what might be an approximate cost for them?

i did the trunk a few years ago, and it's perfect now.

thanks for any info if anyone did this before

I myself would have a glass shop do it to r&r the window and you already have the seal shouldn't cost to much. I had a windshield put in for 175.00