oh goodness, it would be helpful if you could find a school in your area that offers darkroom classes. jr. college perhaps, or an art center, even someone in your area that has a darkroom that would be glad to let you see the basic darkroom and the workflow.
there are a wide variety of books available , but hands on is the best way to learn. Ilford has a pdf on their website that will give you the basic's including a list of equipment.
i know people who print in their bathrooms sitting on the floor so space can vary from a closet to a good size area.
cost these days can be cheap as there are lots of enlargers on the market . check your local paper or craig's list.
printing can be difficult and it can be easy; however, it takes practice and experience . Some fall in love with the darkroom and others who always wanted to try it , find it ok, but have no passion for the process. that is why, if you can find someone to mentor you or give you some first hand experience it would be helpful .
i don't know if this really answered your question but perhaps will give you a direction to think about.
regards,
ann