If you can find one of these in good condition then just buy it. I never got the knack of loading spirals in the dark and usually damaged the film doing so, but this is so simple. OK you have to turn the wheel during deveolping and fixing, but it is no effort and no following complicated agitation times. Uses just 200ml of solution so your expensive chemicals go further too. Just adjust developing times for continuous agitation (about - 15 to 20%).