I've a friend who owns a machine shop who loaned me the spring compressor (NAPA carries them too for 30 bucks) and a fitting to screw into the spark plug hole to attack my air hose so the valves don't drop. First thing I did was remove rockers and shaft. Second, I used a punch and hammer to just tap the washer on top of each valve spring to make sure it will seperate easily from the retainer clips. Third, attach air hose to cylinder, turn on air and keep it on. Forth, plug oil passages with rags to keep clips from falling into block. Fifth, compress springs so you can easily push down and remove clips and washer then lift off spring. Six, remove old seals and place on new ones. Seven, do 1-5 in reverse.
While doing it I used new clips........intake valve has two ridges and exhaust has three. Also did seals on both intake and exhaust valves. It's also handy to have a pair of angled needle nose pliers and a magnet. Ibuprofen if your doing it in the chassis and are over 45.
I'm sure I missed something but there it be for me.:-D