While I am glad to be able to help a neighbor, and grateful for some more bike parts, it can become overwhelming
and just "more work" very fast.
Have already gone through that pile and will keep around 10%, the rest going to the metal recycling bin
at the local transfer station.
There were a few "finds" mixed in with the pile of junk.
The transfer station is only a few miles away, free to dump recycled metal, and I have the truck to take them.
my opinion is that that's better than just luck.
One side note: Yesterdays "Hi Tech" becomes todays discards. Bike parts that took years to develop, and produce,
are available and sometimes free.
When I say that I'm thinking back to the time in history when 'safety" bikes were being developed and a mechanic
needed to plan and build their own chain, let alone tires, tubes and such.
For a while at least, this is a good time in history to be a bike basher.
( reference to bike basher as in "kit basher" , when taking several model kits and building one custom model)