Hi Jeff,
Lots of good advice for you here. As far as tooling goes, the company I work for (Rangate) rolled out a new program called CutterShare pretty much exactly for your situation.
It's a way to use the best cutters available as you're getting started without making a hefty investment before you begin production and get some money rolling in. Obviously I'm biased, but I think it really does make a lot more sense to use good tools from the get-go, especially since brazed stuff which is comparably priced isn't going to support tight joinery much longer than a rental period.
Our cabinet door set is a stacked design that you would move the spindle up and down to switch between coping and sticking. The nice part is that it has a consistent cutting circle diameter, so you don't need to adjust the fence between cuts. We did a good video of the process here: https://www.youtube.com/watch?v=tgTWNXQKapY
I'm sure this came up in your research, but make sure you cope the ends before doing the sticking, so any blowout you get in the cross grain cut gets taken off when you profile it.
Feel free to contact me if you have any questions about tooling as you get started!
Alex