I'm looking for the following:

Early M1Abrams smoke dischargers, and possible the grenade boxes
Later style British exterior fire extinguishers (Merk I will work too)
Dish style Sherman wheels
Rubber engine deck "bump" strips from Tamiya Chieftain kit
I've got tons of stuff to trade, including MLRS and Bradely parts (nearly
complete kits)

I think that I can help
If these are the Sherman wheels you are looking for, I have four extras:

I have two differant kinds of modern british fire extinguishers from Academy's Warrior MCV:

I have these smoke launchers and a set of the new side grenade boxes:

Hope this is what you need
Evan

Evan, those are exactly what I need. Three outta four and bad! PM sent.