If you just want to change the color of saya or the style of fittings, it will be fast (no customization fee).
But if you want japanese sword blade customization, it will take a long time (customization fee is 30% of the order amount). Blade customize means to custom saya and paint as well. And there is unexpected phenomenon during blade production, such as cracks, which require re-manufacturing. So to custom blades would take months or more.
