Re: unipolar stepper and 5804

Decade counters might be another easy option:

http://www.technologystudent.com/elec1/count1.htm

There will be 9 pins to represent 1-9 and then an extra pin which you
can feed to the next counter chip, the first chip is units, the next
tens etc. On the output of each chip at a rotary switch and connect
all of these to some (or a few) so when the target is acheived you get
a signal to stop or perhaps a lack of go signal.

It might not be the most efficient way to do it but at least it is
understandable, especially if you add the leds.

Graham