瑞士采购需求：音乐盒机芯、木制音乐盒、雕花音乐盒、婚礼回礼音乐盒、玩具音乐盒、塑料音乐盒

We're looking to order around 100 custom music box movements with our own melody for our educational organization in Switzerland. We can provide the melody as MIDI or MP3 and would like to know if you can produce them. Could you share the estimated cost per unit, any one-time programming fees for the melody, production and delivery timelines, and available sizes? We're particularly interested in small movements, ideally around 5 cm. Thanks for your help!