I am not sure I understand what the beef is between UhuRuto. I don't think Uhuru is stupid enough to be fooled by Raila to rock the boat for Ruto. Other than being an outright screwball I think he should focus on his BIG 4 which the Ruto crew have struggled to front. It's possible that Raila is the one being played by UhuRuto - being put on a pedestal as he is fattened for slaughter.
Otherwise I don't see any credible PORK contender to beat Ruto as Raila ages: Kalonzo, Madvd, Mutua, Gideon - who??