what are you planning to run them on and do you still need a Cat for the MoT? as carbs generally not good for Cats
I previously started of with plan for bike carbs on 2 litre zetec (before going throttle bodies) and had all the stuff but sold it about a year or so ago, I brought it all separately Zx9 carbs £70, matching fuel pump £40, made a manifold £50, ECU like megajolt £150, filter £60.
I do have ZX6 carbs running on a 1.6 CVH in a kitcar and jetted them with use of a narrow band lambda sensor
ZX9 carbs on home made zetec manifold