Pulled the instrument cluster- a couple ??

[H8GAS]

I pulled the cluster because a light bulb burnt out and the odometer hasn't worked for about 4 years. I had a couple of questions to the guys who have done this before. First, I need the odometer gears. I need the small drive gear (E1?) (about the size of a pencil eraser), the gear that is driven by it (E2?) (bigger than a dime), and I would like to replace the tan colored gear that sits on top of the gear that actually turns the odometer and trip meter (does that one make sense, I can's find it anywhere, but it is deteriorating as well. The first two gears are missing teeth so they definitely have to be replaced.
Is there a website that sells these for less than $40 for the first two gears and where can I get that tan colored gear? Is there a reasonably priced kit somewhere for all five gears in the speedo?

Also, has anybody found LED's for the instrument panel? If so, where did you find them and what were the part #'s if applicable?

Is there anything else that I should do while I have the cluster out?

My sig should come up but this is an '82 300SD
Thanks