Red Murray 20" Cut Push Mower With 3.5 HP Briggs - (Atchison, KS in Topeka, KS

I have a Murray 20 inch cut push mower with a 3.5 Briggs and Stratton engine. It starts on the first pull, runs great and cuts great. It has a new carburetor diaphragm and gasket, new spark plug, new air filter, recent oil change and blade sharpened. It is missing the grass deflector chute and leaks a little oil out of the bottom crankshaft seal. I