impossible to find parts

I'm after the above parts - can't find anything online second hand. Anyone got some bits in the shed?

Hi all, My beloved 1996 Trek Y11 has seen some better days. I’m told by the bike shop that the bushing at the unified rear triangle pivot point that connects to the carbon Y frame is cracked. As such, whenever I pedal hard or force down on the cranks, there are loud cracking sounds that echo...

For a bike project I recently finished, I wanted to fit some Shimano 600 AX brake calipers, I found some second hand ones cheap and also received some 600 AX brake levers with my purchase. As you might have guessed there were no hoods, they had obviously shriveled up and disintegrated with age...