1 more seat question - save these or go new aftermarket

I'm going through the same thing now with my 67 Dart GT buckets. Bought the covers and foam for $685 over internet and it's going to cost me another 300-400 for someone to install. Wanted to do it myself but I removed the old covers myself and relized I don' think I have the talent to install the new covers myself and they are too expensive to screw up. My seats looked just like yours.
Now I found out one of my seat belt retractors is bad so thinking about going with an aftermarket.