I see front derailleur issues between the crankset swap; having to buy new cables quite often. It just looks like a pain and putting the long cage RD, 11-34 and 30-42-52 would be the lesser of all the evils, but your buddies on the group ride are going to make fun of the pie plate on your rear wheel. I also don't like to take bottom brackets in and out, but that may just be me. Good luck