390 w/open chamber heads

After thinking about it for a while I came to the conclusion that I really have no reason to complain about the extra cost of the RPM. if I get a cast crank I'll save about $400.00 so even if I buy a good used RPM intake I'll still come out way ahead!!!
Nobody had any input about getting a custom cam from Hughes?? Is this also not necessary????
And nobody chimed in about getting the correct push rod length??

Treblig