A print dark room can be as simple as an enlarger with appropriate negative carriers and lenses, a timer (for printing you can get by with anything that shows seconds, even your wrist watch), a safe light, and developing trays. If you shoot large format, you can even forgo the enlarger, negative carriers, and lenses and just do contact prints.
From there you can spend thousands of dollars.
Any book from the public library on printing will have a complete list in it. But here is mine:
For Enlarging
enlarger
enlarging lens
negative carrier
enlarging timer
developing trays
developing timer
print tongs
safe light
printing easel
blower-dust brush
print washer
print dryer (I use wood clothes pins on a cord strung over the bath tub)
graduates, funnels, storage bottles
towel (to wipe hands)
apron (highly recommended)
paper developer
stop bath
fixer
hypo eliminator (optional)
Handy stuff to add:
paper trimmer
sheet of glass (to squeegee prints on)
squeegee
For film processing add:
Developing tank & reels
Film developer
Hope this helps...