@ paup
That's normal for the RAM disk - nothing to worry about there.
722K free on the hard drive isn't unusual for a drive that size, either. I'd suggest replacing/adding a new drive rather than trying to free up space. That way you don't risk deleting something important.
Did you check the clock battery while the machine was apart? Those things tend to leak and cause all sorts of damage. If it hasn't been removed already, do so as soon as possible.
