Yup...that's why I've held onto mine. They are becoming harder and harder to find...kind of like good FE3 partsI just checked with HID planet, and the BMW E46 ECE projectors are no longer available from them.
its second hand or ebay from here on in......
I'm going to do this. I've mocked up one projector in the housing held together with jbweld and just the little bit I used to tack it down, it still took a few good blows before it came loose. So fully 'welded' down with jb, should hold up very nicely.
Since my upgrade is basically done, I can focus on these now.