Cam and rocker options

I know you stated your on a budget. Depending on what you want to do down the road. I would consider a shaft mounted rockers from Probe. You can find them online for around $530.
I guess this is me because I am having my stud set up fail me at 7500rpm. At this point it could be due to other factors, but I just think that if you are putting something together with the possibility of growing why not invest in something that will last and hold up if you plan on a more exotic build down the road. I am so used to shaft set ups on other motors that I feel much more comfortable and can see the added strength of tying two rockers together. Also seems you would get more consistent lift at each valve as long as each valve is the same height.

just might be something to think about
Scott