I couldn’t even start to imagine

Gotta list of the rules somewhere?
Also, if you just do that inexpensive “Stock” rebuild, you’re never going to be competitive. Ever ever. Dream on with that! LMAO!!!
I forgot to mention earlier that you have to run stock size valves and factory spring's. The only extra expense I can see is the blueprinting as most people have their engines balanced and the dyno tuning if you want that done.