Hey Jabo, I used four bench seat frames on a few of my Malibu`s. As for bucket seats, I think almost any GM bucket seat will bolt up to the stock Malibu/G-body seat tracks. My 78 El Camino came factory with bucket seat, I found a better looking bucket seats at a yard sale from a S10 Blazer. The Blazer seats bolted right up the the El Camino seat track`s. Im sure you could use bench seat mounting stands from another G-body. When you cut them out leave some floor with them so you can screw the mounting stands to the floor if you dont have access to a welder. Well I hope these tips and tricks will have you in a set of bucket seats soon. Doug