If you PM me your email ID, I can send you a Word doc with a rundown on how I did a CB900C's steering head bearings with All Balls replacements. The file is 1.5 megs with pictures so too big here even when I zipped it.
Your bike will be similar to the CB900C. I didn't have a press but instead I used the old inner race inverted to drift the new lower race down. I don't recommend this actually. If I ever do it again, I will rig a press and use a piece of pipe suitably trimmed to bear only on the inner race. But, that said, I got the job done.