You can fit an ink cap at the dial as protective barrier. I added it magnets from a Chinese store, which was one of the cons that will be nice to find with the upgraded model.
I don't really like the clamp (which by the way you can buy for cheaper at Aliexpress but for the first units they sent it for free).

The creator of the Musotoku is a Spanish engineer. Met him at the '16 Barcelona convention when he started the business and every single part is high quality.

You can find it at many tattoo suppliers, not only killer ink,even they sell directly... Or at lest they did it when I purchased mine.

Great invest, maybe a bit more expensive compared to other famous (or infamous) PS, but this is not going to fuck your day with drops of voltage, burnt parts, etc...