Evolution items

Is there any reason to keep:
Sun Stones
King’s rock
Metal Coat
Dragon Scale
Up-grade

Except one or two for the inevitable use an item to evolve.

Thanks

Porygon2 has a further evolution into Porygon-Z in Gen 4.

Mega Scizor and Mega Steelix?

I would hold on to the Upgrade. Lock-On was added to the game files which hints at a Porygon Community Day.

I keep 2 of each

Thanks. WILCO