I'd suggest you use trays not drums for you will miss the appearance of the image, still an exciting moment for me even after 30 odd years. More importantly in trays you will learn to assess the image under safelight conditions and after a while begin to reduce or extend development to bring subtle differences to the image. You cannot do this when using a drum.
An archival washer is not absolutely necessary although very nice if you can afford it and have the space. Someone mentioned a Kodak Tray Siphon, very good advice but don't try to wash too many prints at the same time when using it. I used one for 15 years before I aquired my first archival washer.