I mean, depending on what you want, you'd be surprised what you don't need. You can print out a negative on transparency sheets on a generic copier and make cyanotypes.
You don't really need (for most uses) a specific printer or inks... just be consistent and run your tests and calibrate all of your images according to step wedges, etc. Which you would have to do anyway if someone else printed negs for you.
But if you have a darkroom, enlarging to ortho film is really the way to go.