[lineslinger]

767 Jockey,
I understand your need to finesse the budget. I spent over 18 months prudently ( I hope ) collecting components for my big block build.
You sound like you are developing a proven philosophy.
Build a rock solid bottom end.
One that will handle whatever changes you employ to the top end down the road.
Reliability and strength on the bottom end allows much more flexibility later on.
A block that has been tested and proven. Do your best to install the highest quality crankshaft, pushrods and pistons you can afford. This and proper oiling is the key to long life, no skimpy OP.
Spend your bucks on a solid base and use the KISS method up top until your budget allows for the improvements you desire.