need exhaust valve keeper pin for 3hp briggs

#1
a friend of mine was working on his 3hp briggs and lost the keeper pin for the exhaust valve if anyone has one of these let me know i have a ton of 3hp briggs parts but not the same type of keeper that has a pin
 
#2
I have a complete 5hp valve train setup that has an exhaust retainer that locks in place with a pin that slides through the exhaust valve stem.

Not sure if the valves are the same though.......
 
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