201.821.00.47 is a multi-purpose relay that can be had for about $60-$70.

But if I were you, I would change out all my fuses with the copper fuses, just in case any fuse happened to be bad and it wasn't readily apparent from looking at it. It would be a cheap fix. If you are in a rush, I think Autozone has these in the Bussmann brand for about $15 for all of them.

Also, check the Delco-type fuses in the base module (that's under the lid that says battery in trunk). You will see them when you remove the lid.

The brake light switch is a common problem and considering the low price, it too would be something to consider before going on to more expensive possibilities. If it has never given you trouble in the past, it probably eventually will anyway.

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1993 400E, 256,000 miles (totaled)
1994 E420, 200,000+ miles
1995 E420, 201,000 miles