I ordered 3 from shopperschoice and waited about 2 months to finally get them but they all leaked from the casting so I called them and we eventually went through 8 to get 3 good ones. After this, they claim to now test each one individually before they ship out. I had one fail recently and they warrantied it, even though it's been well over the 90 day warranty period. They have a thread with a discount code, you'll have to search here to find it.
As for the pilots, I drilled and tapped for a 1/4 to 1/4 swagelok bulkhead and run a line from a ball valve to the orifice (simply a drilled out swagelok 1/4 cap). So it's manual but this way I can better control sooting of the pilot flame. I looked into the honeywell pilots but decided it added unnecessary complexity. I want to be a part of the process, not just a switch flipper. I used stainless braided lines as I thought the yellow Lowe's/HD lines Lonnie used a tad ghetto but I'm actually thinking of hard plumbing in some 1/4" stainless tubing and bending them precisely to fit. I'm building a new control panel so once I have that anodized and machined then I'll go through the rig and redo some of the things I didn't like the first time around.
You can get an acetylene regulator from any local gas supply. I went with Matheson as I have a relationship with them and they make great regulators (it's branded as Matheson). Here's a good but more affordable alternative:
I'm using Blichmann pots (I told you I wasn't a tightwad), not keggles. My burners are 4" below the bottom of the Boilermakers and it's the perfect distance (no soot, except from too large a pilot flame, which I control myself. All you need is a 2" or less pilot flame and you'll get no soot).