I don't know of a place to suggest. The idea of checking with someone in the Kosher community seems like a good one. A Google on "shochet" and some geographic condition might turn up something.
As for the worthwhile . . . Many of us raise our own birds for the improvement in quality of meat and eggs over what the supermarkets offer. Some even save money doing so. Those who don't often still find the better quality well worth the marginal increase in cost over the commercial goods.
My own feeling about Kosher is similar. All manner of reasons to eat Kosher meats. For many, there are the obvious requirements of their faith. Others not observant of those strictures believe that Kosher slaughter is more humane, and choose it for reasons of conscience. Still others (like myself) tend to believe Kosher meat is a superior product over the Tysons and Perdues of the world -- and that's just poultry. Quite apart from the Kosher packing houses, the years I spent in NYC, any Kosher beef I found (usually in a smaller butcher shop) was simply better meat. Some of that might have been due to the carcasses coming from a smaller operation that might have been able to take more care or shown more interest in aging and other factors that contribute to end quality, but the requirements of Kosher slaughter and butchering, I believe, make a difference for the better on the front end of the process.
Any one of those three considerations would, within reason, make the increased cost or effort worthwhile to me. YMMV