Apparently there's a complete series set that was just released on dvd in late 2018. I've just ordered it from amazon as i've been searching all over for an english friendly set. Price isnt cheap as well so hopefully the quality is good.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1