Engine combo advice

Regarding the rockers: I got the block and heads separate. (I sent five heads to the shop before I found two that weren't cracked). I Found the rockers cheap and, as I didn't have any, I figured if later down the road if I wanted to upgrade, I'd have something adjustable.

I will admit, I may have mismatched some of my combo, and done so prior to getting on this forum. I have since read post after post about subjects I've had questions about, and found most are answered right here. You guys are an awesome wealth of knowledge, and to that I say, thank you!! I'm hoping my project will go well, and again, any input is welcome.