Crimea,
Good morning & thank you for watching my posts & for your query. To tell you the truth, I never thought of using silver solder. Given the small scale of the model & even smaller details, does silver solder come in such small sizes? The Tiny diameter of plastic rods permit easy bending & I have used an old hair dryer to help facilitate such bends. Once cooled (cooked?) the rods tend to retain their shape. The thickness of these rods is about the equivalent of a "T" pin. I'll show you in my later posts & see if this helps.
Sincerely,
Gary (Skye)