Ohhh so sorry you're dealin wih this. I haven't had surgery yet but I do have experience with such complications from removing my gall bladder. Leaks- stents- MRSA- pancreatitis and a very long time in the hospital so I do feel for you. I'm familiar with having home health and pic lines etc and that was the pits!!!
A second opinion isn't a bad idea if you honestly think your doc isn't competent enough. I feel, though, that this probabaly isn't the case and surely s/he must be consulting with others too? I would ask if you haven't already.
It does seem long for you to be dealing with this. I'm sorry f this is a dumb question but did they go in and re staple/suture at all or are they addressing it by hoping it heals? Just wondering and if not- why would they not try that? Maybe they did.
You will get better- what have they told you lately as prognosis and treatment planning?