in the process of putting my head back together over the last couple weeks (I have a rough time finding a good time to work on it!) but to pull the head apart is not tough. I am by no means a mechanic/nor mechanical and I did it in a few hours. LABEL EVERYTHING. get a bunch of ziplocks and a sharpie and they are your best friends! GET the FSM's. download the expensive one from birfield and get the others from toyota for about 40 bucks said and done. Make sure you get the emissions, that crap is crazy, still working on it.
Get a buddy to help you get the head off, and definetly to put it back on. The guys who rebuilt my engine for the PO had (it looks like) blew the #6 cylinder gasket on the head gasket by dropping the dang thing (head) on it when they installed it.
Get the parts from C-dan on this board, he knows all. Take hundreds of digital photo's (better than the exploded views IMO, because it's your stuff and you are familiar with it.
get a buddy and buy some beverages to have an enjoyable time. order your parts first so you can tear down and build up nice and close to each other, the longer I wait the harder it is to remember stuff.
lastly, the help on this forum is freaking amazing. these guys know everything about cruisers you can imagine. Come here often and search a great deal. It will walk you through all the tough stuff.
good luck and let us know how it goes.
btw, all the above information was given to me by others on this forum. You guys rock.
and tools, a good socket set worked for me.