Wanting a set of 3 Novi carbs for the gpr in good condition and ready run or where can I buy them new at a decent price?

Its summer here in Aus and I need this boat running asap. I just went to freshen up my carbs and rejet when I realised one of of the low speed adjusters has been butchered by the previous owner. I don't even think there is a seat for the needle just a drill hole, I thought it needed jetting down?? its been pouring the fuel in at idle.

I'v been looking to upgrade to a set of Novi's for ages so now is the time although they seem to be getting scarce and when they do show up sold within minutes.

Can someone help me out????