I was just poking around this old thread, and wanted to update it.

We took the Pentax rig with an XA thrown in for good measure. The MX went in for service right before we left, and didn't come back in time to come with us. Our kit was:
Pentax ME Super
SMC M 20/4
SMC M 35/2
SMC M 50/1.7

Here are some sample pics:
Machu Picchu
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Bucaramanga, Colombia:
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Medellin, Colombia:
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