Nitrous plumbing A1A...??..

Well I found this on Speedmaster and damn near ordered two of them today through Summit... It looks like I can put whatever Jets I want to in them? I would have an extra mounting bracket obviously.. The Summit site says they won't ship them till February 17th and the Speedmaster site says in stock ships within 24 hours? The guy on the summit site said he couldn't answer why..
With the hoses and the brackets I could order solenoids and a Purge kit and be damn near ready for a tank and a line and I fuel system as well?? I know I need the full throttle trigger which I also want to put in line with a trigger on my shifter or something as I want to control it myself...