Right on. Seems like the Legends decks are probably the only thing that definitely shouldn’t be wholesale mixed together. Mixing all the familiars into one big stack for set up seems good. Then ya just have to decide: Gangs or no Gangs. and if the answers is “no gangs” you can decide, regular legends or nacho legends. Not too bad. Mixing all of the main deck together (and not having to worry about separating it out later) is the biggest hurdle, but it that works well and doesn’t water too many things down, should be alright.