I'm getting close in getting some new seat covers on my 71 bucket seats. the covers are fairly worn and I can seen the foam peaking through the seats in a few places. should I get new foam when I recover these seats? will it be a noticeable difference in comfort with new covers compared the old foam with new covers? should I buy anything else when I get the new seat covers?

I saw dante was having a group buy so I'm trying to get in on that before this Friday.