Jim Pepino was a designer. His plans are available from Scale Plans & Photo Service.
http://www.fly-imaa.org/imaa/IMAAads/pepino/index.html
Many of his designs are cut by the major kit cutters. I had a P-39 kit from his plans that was cut by All American Kit Cutters, but sold it before I built it. Looked like a nice design. I also have a set of his plans for a 1/4 scale WACO YMF that look real nice.