Rel said:
...Adventure 3: The Sunless Citidel. By this point, both my wife's character and the Half-Orc should be level 2. The first forray into the SC should get the wizard to 3rd level. At that point she and the Half-Orc should be able to deal with most of the challenges presented in the module if they are cautious. Especially if they ally with Meepo to give them a bit more ability in the sneaking and ranged attack areas...
As a suggestion, if you plan on using Meepo as a reocurring "helper" NPC then I strongly suggest making him a viable, eventually cohort-able (is that a word?) character. Actually roll his stats as if you are creating a kobold PC/NPC from scratch (or do point buy, or what have you). If he is properly outfitted, he will make a great lackey.
Also, I can't remember the book I saw it in (maybe Tome & Blood?) but for some reason I remember seeing rules for alchemical healing salves. Personally, I see this as your best bet for healing.