91 Z24 Issues Starting, motors, fuses

Hi! I have a 91 Z with 120000 miles on it. I just acquired the vehicle, and the passenger side window motor works, but only the side closest to the windshield of the window goes down. The car started and ran until I had to replace the Battery, Alternator, and serpentine belt. NOW 14 days later, the car will offer crank but will NOT start. I noticed that the ECM fuse was blown, so I replaced it, the car started.....once. Then right back to the same pattern, all crank, no fire. There seems to be a gas smell occuring when I try to start it, and I believe the fuel pump is offering as well, but has not sounded quite the same since that only start. This car ran so well for such a short period of time. I am also in need of wheel cylinders, AC (valve port leak), Driver's side window motor, maybe a gasket or two and front wheel bearings. When it runs, it runs STRONG, and sounds fantastic, Tranny is GREAT. Wonder of I should part or fix. THANKS HELPING IN MY TIME OF NEED!