Ive sever hopped at industrial sites just trying to find the parts. I have 6-8 friends that also play on multiplay.com/gameservers.com public hive servers and I've asked them to screenshot any of the above listed 1.02 items, and none of them have been able to.

Are they super rare? Or not spawning for some public servers?

Ive been looking every day since the patch dropped. I have a car and I drive around the map checking car spawns. It feels like it's getting kind of ridiculous.