I'd look hard at a pellet grill. I can control the temp on my pellet grill from 150-500. Like said above, set it and forget it.
The pellet grill has worked great for smoking turkeys, jerky, sausages, etc and can be used for cooking many other items at higher temps as well and for lengthy times.
I did buy some extra racks for making jerky in the pellet grill simply to process more meat at once.
