I purchased Gordon's refurbished carbs with the FP kit (
https://www.ninjette.org/forums/showthread.php?t=257594) a little over a week ago. They arrived quickly and looked amazing. I bought these because I had botched the job of cleaning my own after letting old gas gel for about a year, even losing a critical part in the process.
He went above and beyond trying to find a replacement, but in the end it was a smarter move to get his complete set (plus the FP needles alone were worth the price difference.) After swapping in my own mains (airbox delete/exhaust) the bike runs better now than it ever has. Great guy, very helpful!