Hi Scarroy, welcome to the forum. Here is a link i think you might find more useful:
http://www.vikingsword.com/ubb/Forum1/HTML/000717.html
I am glad to hear you are interested in doing some restoration on your keris. You might want to start by not piling up your pieces like so much garbage.

Please excuse me if it sounds like i am scolding you, but frankly, looking at the photo you posted was downright painful for me. For some of us the keris is more than just another dagger to collect, but also a cultural symbol with much spiritual significance. But even if it is just another dagger for you, you will have a whole lot less to restore if you treated them a little more carefully.
Just a hint to add to the washing and staining process you find in the link i've suggested. Use distilled water only and you will have less trouble. Weather is also a factor, especially the temperature on the day you do your staining.