Yeah, if I was going to do Banjos I would probably just do the kit that's on the vendor section, looks like a great deal.
https://www.homebrewtalk.com/f41/5-piece-bg14-banjo-burner-set-40-psi-regulator-hi-pres-hose-160-kegcowboy-com-198013/
I've got my heart set on some jet burners though...