I am looking for wire that has a high tin content. The wire is used to join the Cabane, and landing gear struts of an Areomaster. From reading the plans the wire has a high tin contect which helps during the sodering and adds strength. Does anyone know where I can find wire like this, or a substitue. The Areomaste project I took over is missing the wire. I looked at music wire but don't think that would be a good fit, its not very flexible.

If you're talking about wire to wrap the joints where the music wire cabanes are soldered, I use thin copper wire, about 28 gauge, and wrap a double layer. Use silver solder, stronger than regular tin/lead, but requires more heat. make sure the piano wire is absolutely grease free, clean it with naptha, alcohol, MEK or lacquer thinner, then use 100 grit sandpaper and sand it shiny where the solder joint will be, then wrap the copper, flux well (I like paste better than liquid, it stays better)heat and solder. I think a MAPP gas torch works best.

I use the copper picture hanging wire myself... Never had a problem with it

I use different types of single strand wire, even some speaker wire. Strip the insulation off and run it through some sand paper, flux and solder.
What size Master do you have. I'm installing A new engine in my 60 size at the moment.