The sprayer arm and female compression fitting came from Bargain Fittings.
I cut 3/4 inch off the short side to gain more clearance. Also, it comes with a male compression fitting but I chose to omit that and go with the female and join the camlock and compression fitting with an NPT threaded nipple. Use an O-ring, outer washer and locking nut with a recess for the O-ring: all sold at Bargain fittings. The white plastic sprayer head is from AHS. It's a wort aerator.
I've not used a butterfly valve (yet). To clean my ball valves, I pump cleaning solution through them and open/close the valve slowly/repeatedly so all internal surfaces are flushed. I've taken apart the ones I suspected would be the most grungy and they were spotless. Still, I'll disassemble them all about twice a year and put them through the dishwasher.
Congrats on the new fermenter. If you've not used a conical, they are awesome! Secondary is just a matter of dumping the trub/yeast. Done!