There has been several requests for boat plans from my former website (www.lakbayjuan.com). The Outrigger are on top of the list for enthusiasts outside of the Philippines.
Bangka plans rarely exist online because boatbuilding in this country is still an oral tradition. It is a lot easier for the builder to make a real boat than asking him to sketch everything down on paper.
I am more than willing to do all those documentation. After all, this is what my passion is all about.