Second of all, I think it will be a good idea to divide efforts between a Wikipedia and a Wiktionary. There are many similarities between the projects, but on Wikipedia you can give much more information about a subject, while in Wiktionary you give information about the word itself (ie pronunciation, translations, definition). Perhaps it would be a good idea to get a "head start" with the Wiktionary until you have a "working lexicon" of 500 words, and then split efforts and start more on a Wikipedia.
I disagree; in my opinion it would be better to start just one of the two, whichever the organisers are more interested in. There's just a few people working on the language, and it might be some time before there are more. Splitting efforts in a situation like that seems to me to be detrimental to the project. Of course this does not mean I would be in favor of blocking one or the other, I just want to advise the Amis Wikipedians/Wiktionarians against it.
Perhaps you are right. In this regard I think the best idea is this: get a small number of good articles in Wikipedia, and then change to working primarily on Wiktionary (or, for that matter, the other way around).
As another issue, is any of you experienced in Wikipedia? If not, it would be good to have someone from another Wikipedia (the Chinese one seems to be the obvious choice), preferably a sysop and preferably someone with passive knowledge of Amis, to help in setting up your wiki. And of course an announcement should be made in the Chinese (and perhaps Min-nan? I don't know enough about the Taiwanese linguistic situation to judge that) Wikipedia and Wiktionary when this is started.
"Pektiong Tan (zh-min-nan:pektiong) will help those people to get familiar with the wikipedia system."
Mark