Check out my post on the forum for 36 part gold mine. Maybe your 1 of the 3 or 4 guys we need?
The sedan fender can be converted to fit a coupe. You have to be (or know) a good welder. technique is the same as repairing the inner edge of the fender:
I used the EMS patch panel on the front edge of the fender. Then to patch the inner edge of the fender where it bolts up into the wheel well what I did was attach some 18 gauge to the wheel well with the normal bolt holes. I cut out the rusted edge of the fender and laid it over the new metal using the back horizontal bolt holes to line up the old sheet metal. I used 5 or 6 clamps to hold the old metal down. Drew a line to establish a cut off for the new piece. Removed the new piece and cut the line off. Took another piece of 18 gauge and, using the first piece as a template, made a "doubler" that extends 3/4" beyond the cutoff. This acts as a "backer" when welding the original fender to the new piece. You can use lots of clamps or drill small holes and use sheet metal screws to hold the whole contraption together for welding. Then weld the entire bolt edge of the 2 new pieces and go back and plug weld the screw holes.
This template will work for either side just by flipping it over.
The only tricky part is MIG welding the "old" metal to the new metal. Old Henry's 18 gauge is down to 20 gauge or less so start the weld on the "new" side and wiggle over to the old metal. It's best if you skip weld every 2 inches or so, let it cool and come back and fill the spaces. The doubler will really help with burn thru.
I recommend using "weld thru" primer on all metal surfaces before you weld it up. That will inhibit rust forming between the 2 pieces of metal.
Good luck and remember, from one fat fender guy to another, my template and advise comes with no guarantee!