Yes ideally you'd need a long cutter and large router. I basically use the smaller router and cutter to make a shallow recess then finish the full mortice with a Auger bit, it saves time on the marking and setting out. Cheers
Do trend do a template for the common tubular latch and face plate ? I’ve been doing these for years with a 23mm spade bit, but as you know the hole for the tubular latches aren’t round
unsure I've had this many years, I'll usually cut in by hand as its not worth setting up for just one lock. Though I'm guessing there are plenty of different jigs available now.