Paasche VL needle #3 needed -- Where?

Hey guys, about a year ago on here, I lucked out and found a guy (I can't for the life of me remember who) who was VERY nice and gave me a used Paasche VL. It took a little care, but she was kickin out paint like a good ol' Paasche in no time after some cleaning. Well, I haven't used it in a while, but need it for some camouflage. So I took it out, cleaned it again, and reassembled it.

I started with testing it out on some plastic, and found it couldn't do thin lines very well, and I believe this is because it has a #5 needle but I am not sure.

Where can I get a #3 needle? And, in order for it to work, do I need to get other head assemblies like a Badger does?

Thanks!