Thats what I done with a 72 Charger "beater" I had. I went to a local yard (if you pull the parts yourself they are cheeper) I bought a pair of buckets out of a 98 Intrepid for 50 Bucks. They looked pretty good in that car. If you do decide to go that route, I'd get the seats out of a 2-Door Neon or Cavilier so they will lean foward so passengers can get to the back seat (My Intrepid seats did not do that)
Anyways your projects looking great, keep up the good work!!!
Jason