Though supporting five color pairs is so 2019 — clearly the play is to support seven of them, excluding the three worst pairs).
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More seriously, though, that's probably the correct play. It's interesting to observe that cutting a single color (or making it effectively colorless by using dual lands as basics - either/or) means that supporting every possible pair (6 in total) isn't that much trickier than only supporting Allied pairs (5 in total). Just swap the tricycles for the final pair's fixing lands, and you're pretty much there.
...
More seriously, though, that's probably the correct play. It's interesting to observe that cutting a single color (or making it effectively colorless by using dual lands as basics - either/or) means that supporting every possible pair (6 in total) isn't that much trickier than only supporting Allied pairs (5 in total). Just swap the tricycles for the final pair's fixing lands, and you're pretty much there.