So, looking at the Unchained Monk and the Far Strike Monk archetype, they aren't totally compatible as is, so I came up with some ever-so-slight modifications needed to make them work together.
1. Replace the Ki Pool modifications of the archetype, changing it to:
"At 4th-level, in addition to the usual ki powers gained, a far strike monk gains ki range as a bonus ki power."
2. Trick Throw is gained at 8th-level, and replaces the ki power gained at 8th-level (the same level that diamond body can first be gained as a ki power).
Looks perfectly reasonable to me!
This is one of the easier ones to adjust, for sure.