235 for 5 to 5 1/2 hours would probably make her happy. No need to wrap.
On my 3D I like 4 1/2 hours, but like you said my Mrs. likes them a little more overcooked (my opinion only) It's just a matter of taste. Ma likes hers mustard slathered, rubbed then refrigerated overnight. I like mine with no marinade overnight, no mustard rub. I just give them a light rub, then when I pull them a another good rub, let them rest then eat them puppies. So I make two batches when I cook ribs one for her and one for Mr.Ed
See it's all just a matter of personal preference.
I purchased my wood on the recommendation of this forum from Smokinlicious,
buy the wood chinks and order the double fillet. I bought the three wood package. http://www.smokinlicious.com/