74 Duster Interior conversion

I have a 74 Duster that I am converting from bench seat to console with bucket seats. I have gotten everything I need but the seats I bought had some seat tracks that were missing rollers. I need to find a set of Duster bucket seat rails that are in rebuildable condition. I have access to a bead blaster and paint shop, so rusty ones are OK, but better condition ones are preferred if they are not over priced. I have seen some on e-bay for well over $400 and I can't see paying that much. Can anyone help out here. Thanks for reading.