Seat covers

Hi guys . . .
I'm new to all this but plan on becoming a regular part of your great society. I just purchased a 1973 Dart Swinger. I need black seat covers. Black rear seat splits on vinyl. Front buckets are tan 74 Valiant, prior owner sez. Shouldn't the buckets be the same as 73 Dart? Also, PG Classics (on EBay) advertises a set custom fit for $295 + $30 s&r, 73-74 Dart/Duster. Anyone buy from them? Thanks! Whoolph (pronounced wolf)