351W Build

1994 351w build for my 1968 Coupe
Just need some help deciding on my valve train.
The cam I'm running is Comp Cams: http://m.summitracing.com/parts/cca-35-522-8
I'm reusing the stock hydraulic roller lifters because they are in good condition.

My question is what kind of rocker arm should I run? I was thinking these: http://m.summitracing.com/parts/cca-17043-16

By the way I have Twisted Wedge 170cc track heat heads.

I'm also not sure on the pushrod length? I know you can buy a pushrod length checker but I'm curoius if someone has run a similar combo. If I can I would like to run the stock pushrods but I want to do this right so if it's better to go with a new set I will.

Thanks!