TW: Nitrous kit Complete for Mustang! or Returnless fuel system

that fuel pressure switch is brand new with box and adaptor that ran me a total of $70…i still have the reciept. and if you wanna do $480 [that is the lowest i will go] i can do the fuel pressure switch and purge.
$550 you can have this:
the orginial kit wet system
Purge kit
preset rpm window switch
fuel pressure switch
ngk spark plugs
for $400 would only give you the orginial kit no extras like the purge, bottle heater rpm window switch. ngk spark plugs, fuel pressure switch

Everything is NOS brand not any cheap stuff.