Just a heads up, for really good Japanese style katsu (or, indeed, for the best schnitzel you’ve ever had), don’t use Panko. Instead, make fresh breadcrumbs by pulsing a some good quality fresh bread (you can’t use wonder read for this, it’s too doughy) in a food processor. The difference in the lightness and crispiness of the breading will be unbelievable.
That will probably work in small batches. I just bought myself a really tiny food processor (its maybe six inches tall at most) that does the job for most things I need it for.