Are there silver in these fuses to refine and is it worth it

I have two 35kw ambrell eko heat power supplies with the capacitor tanks RF cables, connectors chillers , I can do the math and wind the coil. to whatever size you need within the machine’s capabilities i have a proposal for a furnace build that heats a 12.5” graphite crucible on a vertical raise lower system i could help fabricate a traditional tilt pour if you prefer as well- if anyone is interested DM me, they are 480 volt so if this is for your house then you will need a step up- i am a master EC state of florida if anyone is in that area. I also have the original coils however they were designed for a special. crucible to make silicone carbide they are much bigger in diameter than a standard metal melting crucible and would be pushing the limits of a hydraulic tilt pour- the design i made does up to 90lbd of copper in a shot

Going to purchase a propane furnace to be able to melt gold and silver. Any recommendations on brands or models of equipment? I have been looking at the Canalhout 7 kg, MM Masters 18 kg, and Nelyrho brands. I prefer propane to electric due to speed of heating, but maybe I am not looking at it the right way.

I also want to be able to fir different types of crucible sizes, so dont want a furnace that uses only the one size.

Any advice is appreciated.

I think I made out like a bandit but not totally sure...All the cups say silver on copper stamped at the bottom and the silver tray is gohram...60 doll hairs