This notion that longer travel bikes can't climb is a myth, most newer long travel bikes are just as efficient as shorter travel ones, you're just trading weight because they're burlier. We're talking 29lbs vs. 30-31 in most cases, not much. If you can have more travel for the times that you do decide to go crazy and push it, why not?
As for Ripley AF vs. Ripmo, get the Ripmo. The Ripley does not do anything better than the Ripmo except for weight less. The Ripmo climbs just as well, and descends better.