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Not to be mean and nasty, but I think you'd better get someone to do
the work. Watch and then you'll know more the next time you need to
make or modify a cable.

The fact that you have a red and white wire, plus an "exposed
wire" (that's the cable shield) means that you have the proper kind of
wire, but you need to remove the 1/4" plug and replace it with an
XLR.

A jumper is a piece of wire connected between two terminals on the
plug. It's represented in Figure D of the Shure data sheet by a dotted
line between pins 1 and 2 on the connector. And taking a second look
at that diagram, it looks like Pin 3 on the mic connector should go to
Pin 2 of the XLR, Pin 2 on the mic connector should go to Pin 3 of the
XLR and Pins 1 of both connectors should be connected to the cable
shield.

Hehe, yeah, there's a professional engineer close by that should be
able to do it.
Thanks for the help, though!

Adam