1950 chevy 3100, Engine 1954 235

I was going to check the valve lash tonight. After a drive to warm up the engine I pulled the cover and found this

bent rod pic

I had noticed a noise, but thought it was chattering Valves.

video

Looks like that is the only bent rod.

Questions
Do I need to replace all rods as a set? Or only the bent rod.

My engine is a 54 235, Where is a good source to purchase push rods?

Should I be concerned about any other damaged parts?

Ill be spending some time with the search feature, but any suggestions would be appreciated.

I've never changed out a push rod before. Going to be a learning experience for me.

Thanks