I'm contemplating using standard chain link fence that's 6 feet high and
it's my understanding that the deer won't go over it. Correct?

The garden plot will probably end up being roughly 30 feet by 30 feet.

I'm guessing I'll have to supplement the standard chain link at the bottom
to keep rabbits out.

How fine mesh, chicken wire would you recommend and how high up? 2 feet? I
know you're supposed to put a barrier of sorts on the ground outside the
perimeter to keep the critters from digging their way in.

Any other recommendations on keeping the critters out most appreciated.

thanks in advance,

mr. bob