one ball/cup pushrod

Hey Guys..i need one 5/16" x 7 1/4" ball / cup pushrod
...anybody have an extra they would like to sell or know
where i can order one or a small quantity?

I got a set of Smith Brother heat treated cut to fit ball/cup with the 68 Barracuda 416 I just bought. I couldn't use them as one was missing in the box. I just measured what I needed and bought a new set from Smith Brothers to the tune of $178.00. If you want I can throw one in the box of parts you bought from me?