Take some pictures of how the fan belt goes so you can put it back the same way and for any other thing you are not sure of, the more the merrier.
I did my O rings without lifting the plenum off or even loosing any bolts, I did need to remove the throttle body and cleaned it while it was off, just undo top radiator hose and overflow hose, use a 1/4" drive socket set to get to the 2 bolts to remove top hose hosing, and when you go to remove it you think from memory I wiggled it forward (to radiator) and rotated it clockwise in a slow motion, it can be frustrating at first but when you find the right movements it falls out and back into place, before fitting new O rings just practice putting it back into place and it is easy, the O rings, cost me $45 trade for the 2 O rings so about $55-60 retail, there is a guy selling them on ebay.
Also when removing the water pump, there is a metal sandwich plate behind the water pump and the block, remember to remove it and replace it with the new one in the kit.
Make sure you clean all the surfaces and I used a thin smear of blue gasket silastic around the O rings and water pump gasket. I have uploaded some pixs to the link, The throttle body gasket was some ridiculous price like $60-70 and they had none in stock, so for about $2 bought some gasket paper and with a small ball pien hammer carefully tapped out a new one, and sprayed some carby spray cleaner into the body to remove carbon build up, and only took about 1 an 1/2 hours, and bleed radiator and becareful of the plastic screw in the top corner of the radiator not to tighten it to tight.
These pictures might help
Water Pump Slideshow by Philmecrackun | Photobucket