I have a vintage steel bike that I really like, it rides really good, and is pretty lite. It does however have a few deficiencies, it has no bottle cage braze-ons, no shifter boss braze-on, and weird cable routing (it uses a clamp on cable guide that was designed for a FD with a built in cable housing stop, so one side is just a cable housing end).

I'd like to braze on some shifter bosses Like these, water bottle cage bosses Like these, and a new cable housing stop Like thisto the underside of the chainstay, so I can use a under the BBB cable routing system.

I'd like to use silver brazing material, since it melts at a lower temperature than brass, however, I am unsure if it work...

Also, I have two torches at my disposal, one is a butane micro-torch, and supposedly burns ar 3000 degrees, the other is a full sized pluming torch, and supposedly burns at 2500 degrees. Would either of these torches be suitable? Also, where might I get this silver brazing material?

Thanks for your time.