I can promise you I won't be trying that at home. I'd be more likely to attempt soldering. I might even have consulted a jeweler about the right solder to use.
@notagain: Wish I had had your comment before I attempted any of this!
Congratulations. Jobs like this are nervewracking, but satisfying if and when they finally succeed.I hope the parts will be interchangeable between your 1.5 and your 3.
Thank you for sharing this great venture!
Richard & Shordzi: Glad you enjoyed this and I hope you found it helpful for future reference!