Chữ Nôm support

I'm sorry for misunderstanding.

About starting Wikisource projects in script variants: That's probably something that will not be approved. Old/ancient scripts and "predecessor" languages should be in the current language's Wikisource, as far as I know. Have a look at the policies on meta:Language_proposal_policy to be certain. This isn't really the place to discuss it, so my apologies for doing so.

I'll have to look into your real question again. Sorry, no time for that at the moment.