Economical replacement rocker arm set?

I am more than happy to take you up on your offer Yellow. I'm assuming that I would need these push rods then? https://m.summitracing.com/parts/cca-7821-16

The gap on the valve is only .0059" (.15mm) so I think a 7.550 is going to be too long anyway.
keep in mind that it's better too long than too short. you can shorten too long 3piece pushrods, but you can't lengthen them. If you can't be absolutely sure about the length, my advice is go long.