If it were me I'd take I10.
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Funny Story (sorta)

About fifty years ago I was ferrying a thing with round engines that
was afraid of heights. Old Timer at La Junta tells me to just follow
the railroad; that I won't have any trouble.

The only thing he failed to mention was that you'd need a Pitts to
literally 'follow the railroad' through that section of the
mountains :-)