High prices are just online Gasslighting, talk to local car club guys IN PERSON... You can buy Edelbrock SBM heads locally for less than a set of rebuilt magnums online. It's not hard to find a set for free.
In the past year I've picked up
a free 318 with edelbrock heads, intake and carb, jegs billet dizzy that had a spun rod.
2 complete,running, stock 5.9 magnums/904's and
2 complete RV 440's/727's for free locally one ran and had 40,000 miles on it before I pulled it.
A free bugcatcher scoop,
free SBM edelbrock 318 intake.
Free 750 Edebrock carb.
I was told that some of it was posted on Ebay for over a year and never sold and became garage clutter because of the rediculously high pricing they demanded that noone was willing to spend. I found all of it either posted on Craigslist in the free section or word of mouth.
There is a LOT of Kool Aid with online pricing and availability. TALK to People and you'll find deals.