Well I grabed a MAC catalog and Brother's performance warehouse catalog cause they were close and I'm lazy
These should give you a ball park figure.
70 mass-air meter- $189.99-209.99(depending on brand)
24 pound injectors- $259.99
65mm EGR spacer- $54.99
65mm throttle body- $179.99 ($189.99 for 70mm)
190lb/hr fuel pump- $119.99
roller rockers- $199.99-349.99(depending on brand)
valve covers- not sure, can't be that much
Adj. Fuel Pressure Regulator- $79.99-129.99(depending on brand)
Champion RN14YC Plugs- just plugs, cheap
So tac another grand onto the price of a SysteMAX II