Here are some of my tuned and running inventory. None of this is in excellent condition, but most of it has been worked on and most are running. If in doubt about any particular engine, call and ask. Price quoted does not include shipping.
Briggs & Stratton Key Switch. This switch is extremely rare. Used on small engines. $35. Picture.
Briggs Model 80232. 3 HP. Runs. $75.00. Picture.
Briggs 7hp Model 170451 1179-01 gear reduction tuned up $150.00. Picture.
Phelp's Gas Engine as is $350.00