Looking to get air assist for my k40 anyone recommend a uk stockist? plus

Looking to get air assist for my k40 anyone recommend a uk stockist? plus on a scale of difficulty converting it 1 being easy and 10 being too hard for a numb skull like me?

I can’t recommend a stockist, but on the scale of difficulty it should be 1-2. It will be a very simple unscrew original, screw on new one.

Hardest part might be realigning the beam path to make sure it doesn’t hot the inside cone of the air assist

ooh thats kinda worrying as I am about as clumsy as a bull elephant ice skating