Chuck,
There is a guy on Craiglist advertising a long list of parts for 71 - 73. Sounds like he has parted out several cars. I beleive he is in Springfield, MO. I use Craiglook.com to do my searching. I copied his most recent listing below:
I have a large amount of 1969-1973 Mustang Parts I'm trying to sell. Here is a particial list of what I have. I also have many smaller parts as well. Just ask if you don't see it listed. Thanks For Looking!
*** 1971 1972 1973 Mustang A-pillars (Inner Windshield Post Trim) for Fastbacks, Coupes, & Convertibles!!! Inquire
*** Mustang Heavy Duty Finned Rear Brake Drums $25.00ea
*** 1969 1970 1971 1972 1973 8 & 9 inch rearend backing plates with all brake hardware $30.00ea.
*** 1971 1972 1973 Mustang LH (Drivers Side ) Door Rust Free $300.00
*** 1971 1972 1973 Mustang / Mercury Cougar Rust Free Main Front Cross Member
*** 1971 1972 1973 Black Full Length Complete Console Very Nice $450.00
*** 1971 1972 1973 Mustang/ Mercury Cougar Power Window Complete Conversions $ Email to Inquire
*** Deluxe Rear Coupe Grande Seats 2piece upper & lower $150.00
*** Deluxe Front Bucket Seats Nice $150.00 ea.
*** 1971, 1972, 1973 Coupe, Convertible Rear Trunk Lid $60.00
*** 1973 Mustang Fenders RH & LH $150.00ea.
*** 1971 1972 1973 Complete Power Steering Conversion $500.00
*** 1971 1972 1973 Mustang front kick panels in Blue $25.00ea
*** 1971 1972 1973 Complete Center Gauge Bezels both styles avaliable Includes gauges, & wirring $350.00
*** 1971 1972 1973 Mustang OEM Tilt Steering Columns $350.00 & up
*** 1971 1972 1973 Mustang OEM Fan Shroud $150.00
*** 1973 Mustang Mach 1 Ford NOS Grille $225.00
*** 1971 1972 Mach 1 Urethane Rubber Front Bumper $450.00
*** 1971 1972 1973 Mustang Mach 1 Boss 351 Fastback Sportsroof OEM Rear Window Defrost Conversion $1200.00
*** 1971 1972 1973 Mustang Coupe, Convertible, and Grande RH & LH Door Glasses $50.00 Each & up.
*** 1971 1972 1973 Mustang Coupe & Grande Rear RH & LH Quarter Glasses $30.00 Ea. Rear glasses $30.00ea.
*** 1971 1972 1973 Mustang Fastback, Mach 1, $ Boss 351 Back Glasses $100.00 Each
*** 1971 1972 1973 Mustang Mach 1 Original Ram Air (Square Coiled) Hood Hinges $125.00 a pair.
*** 1971 1972 1973 Mustang Front and Rear Valances Your Choice $25.00 & up.
*** 71-73 Ford Mustang Dash Structure $35.00
*** 1971 1972 1973 Ford Mustang Mercury Cougar OEM Metal Radio Bezel $35.00
*** Small block Ford block spacer plates (flex plates)$50.00each will fit 289, 302, 351 Windsor & 351 Cleveland motors. I have them for 3 & 4 speeds, C-4, FMX, & C-6 Transmissions!!!
*** 71-73 Mustang Rear Bumpers $50.00 your choice
*** 1973 Mustang Right Hand Passenger Fender $100.00
*** 1971 1972 1973 Mustang Mach 1, Boss 351, Fastback, Sportsroof complete roof!!! $300.00-$500.00!!!
*** 1971 1972 1973 Ford Mustang Convertible & Mercury Cougar Convertible Steel Windshield Post Assembly $150.00
*** 1971 1972 1973 Ford Mustang Convertible & Mercury Cougar Convertible Top Frame Assembly $200.00
*** 1971 1972 1973 Ford Mustang & Mercury Cougar NICE Upper Seat Frame & Foam Assemblies Both center release & side release styles avaliable $50.00ea.
*** 1969 1970 Mustang Boss 302 Mach 1 Complete Folddown Rear Seat $750.00
*** 351 Cleveland Oil Pans from $25.00 to $40.00
*** 1968 1969 Mustang Mach 1 Set of 4 Chrome style wheels with tires, caps, & trim rings $500.00
*** 1969 1970 1971 1972 1973 351 (CJ) motor running shape 4V Heads 4 bolt mains! with transmission $1400.00
*** 1971 1972 1973 OEM Ford original rear deck spoiler $350.00
*** 1973 Mustang OEM Ford Aluminum slot wheels Set of 4 (5 Lug) Wheels $500.00 OEM Centers also avaliable!!!
*** 1971 1972 Front Bumper Support fits both chrome & rubber front bumpers $100.00
*** 1973 Mustang Mach 1 Rare Q-code 4 spd car now with 302 C4 low miles $6500.00 runs & drives.
*****(If you have questions or would like pictures of any of the items that are listed feel free to EMAIL & ASK. if I don't have an item listed that you are needing? Feel free to EMAIL & ASK, I might have it! I answer all emails as soon as possible!!! I am located in Springfield, Missouri. Email Only, No Phone Calls! Thanks for looking!!!)*****
Hope this might help!