Nickel plate braising onto silver trophy and silver polishing

Sail needs to replaced on a silver trophy for windsurfing. The original sail was sterling silver but new sail can be made from nickel alloy plate approx 0.8mmx75mmx100mm. Sail will need to be braised onto silver windsurfer board. Nickel plate will need to be lacquered. I have the second trophy with a sail attached to use as a template, both trophies need silver to be polished. Place 2 new name plates on each trophy. No engraving required.