I am not sure into details, but this might be possible for you to do with a bit of expence. A friend of mine once silver plated objects with real sterling silver.
I saw the set up and may have missed key features, but to me it looked pretty easy.
He set up a fish tank with no metal parts inside the glass, and filled it with water over the parts he wanted to coat.
With a good car battery he made cables that went into the water, and taped these cables to the tank so they would hold the parts and the silver he used.
His parts were copper and brass. The silver was a 1 ounce .999 fine coin.
If I recall the parts were placed on the negitive cable. The on/off switch was an alligator clip at the battery.
He cleaned with emory tape the copper and brass very well and washed then in rubbing alcohol, and I thing he just washed the coin in the same alcohol.
While the battery was hooked up not much seemed to happen, and it took some days for the silver to transfer to the brass and copper parts.
It was slow, but it did a good job.
I hope I haven't lost anything in my idea of a translation, but I didn't do any of the set up, and don't know any better.
