Hi, hope all is well. I have a 1965 Datsun 320 with the 5 screw fuel pump. I realize your post is over a year old but I am hoping you still have a rebuild kit for sale. I have already tried the Thailand fuel pump and it is terrible and I prefer to keep it mechanical if possible.
PS -- I noticed your car listings and we have similar interests! I have three Fiats -- 1000 Abarth OT, Fiat 750 GT Double Bubble, and a Fiat 750 Berlina. And as for scooters/small MC -- I have a BMW C1 Scooter and a Honda 50 Gorilla (JP).