I'd caution you against any attempt to reflow a DV series laptop . . . or any laptop for that matter. General consensus is that these reflows, even when first successful, are usually very shortlived. Three weeks, three months, later, same problem. And now you have to explain to a justifiably frustrated customer why the "fix" was so short-lived. Not worth it, in my opinion. Plus, even if you find a good company to outsource to, the amount of money you're going to make is going to be trival. You're basically a reseller.