I am also interested in playing through both EU quest packs using the NA monster stats. The shear amount of ogres in the last couple quest in AotOH seems very overwhelming, but i plan on giving the players an NPC character or two and/or mercenaries. WoM doesnt look quite as bad, but most people here say its quite brutal.
We are playing a canpaign in D&D 5th ed right now, so dont know when we will ever get to it. Its possible we could have 5 heroes playing so that might help with the difficulty of EU, Elf, and Barb QPs.