The question is are genuine Victa primer caps and needles still widely available and if so, for how long now that Victa 2 stroke production has ceased.
The main Victa Gold dealer I get my parts from only supplies aftermarket caps and needles.
I did find some 10 year old stock of Bynorm primer caps and a 10 pack of needles, but still only had mixed success.
I'm also in favour of Norms modification to provide variable throttle. There's not much point running a big Victa 550 Pro flat out just cutting the lawn. It does the same job at 1/4 throttle easily. Probably the best bit is no issues!
