milling heads for comp ratio increase

Let's say you have a set of heads that "need work" anyway.....Need a valve job, maybe a couple of valves, etc, plus the added expense of surfacing...........how close does that get to a new set of EQ heads?
It's almost fair comment ...but only on the surface. First, I looked up EQ heads and I can only see them as a Magnum head. Meaning I would need to change to Magnum rocker gear . And even though they are cast in Australia, I can't see them anywhere here . I would need to get them from the States. They are iron heads so with freight and rocker assy I am looking at over US$1500 ! Are you serious? And all heads need to be checked over and fixed up - even big dollar units. That's more $$. Reading my own posts, I am doing a budget rebuild. Heads were fine, valves were all good except two, but found a couple of 318 ones that scrubbed up. Fixed four valve guides with K liners. Got them faced and total cost with the lapping job from a friend at $20 per hour was approx $300. I will also port match the heads to the intake myself - no charge $. If I get them milled it will be $260-300. So all up, around $600 max (US$470).