<VV> Engine building - rocker arms

[Les]

Making progress on my 140 build. I have three engines worth of rocker 
arms here and not enough good ones to make one engine. What's are some 
good options for standard rocker arms? I see Clarks only sells sets with 
nuts and balls (I have new nuts and balls already). Looks like Crower 
and Egge both have rocker arms available. Roller is too many $. Is there 
a roller tip option?

Thanks,
Les