score:4
It turns out that you do need a Form 14 as part of getting the approval letter. (Not in addition to it.) When you fill out the form for the approval letter, if you choose Short-term visitor, you get new questions that were not there when the form first loads:
So, Form 14 here I come. I've been told I need to request only a Visit Pass and not a Visa.
Brief update: we got the approval letters.