It sounds super awesome! 3A is more than enough if you do not want super fast charge (I mean for charging on the go)
It was funny the way it came up. I was in his office and he had these copper coil discs. I was like what the hell is that. He started to tell me and I instantly thought of a wall hanger with a positioned pad to wirelessly charge. With a receiving pad in you enclosure. Still kicking it around.
https://www.amazon.com/gp/product/B07JZDSB7N This is the original item where I bought. Hope it can help you.