Hey Hopper. I used to make the drive from Ardmore to Lawton to race the dirt track there every Sat. night. If you are skilled at using a wire welder, you should be able to do this job. It would be great to have someone from a body shop look at the job with you, and help in deciding where to splice in the new pan. You want to go to the factory joints when possible. You should be able to use the rocker panel joint as one, and there should be another joint where the floor man meets the firewall as it angles up. Another should be found under the seat. The only one that you will have to make is at the driveshaft tunnel. Be sure to buy a spot weld bit to drill out the original spot welds. I always leave a narrow strip of sheet metal at the seams that I can peel away using a wood chisel to break each spot weld loose. Just be very careful not to tear up sheet metal you need at the joints. Drill 1/4" holes every 2 1/2" to 3" in your new piece to weld back in along the seam line. Take your time.