Hi, so I went to my local hobby store, and when I asked the owner what paints would work with my resin, she seemed grumpy, and told me a blanket statement. Then I asked her if I need coating, and she just scoffed at it. So, that led me to youtube, which confirmed my insight:

Step 1: Sand to smooth
Step 2: Prime
Step 3: Paint

Here are my worries:

(1) I assumed that the only thing that needs sanding are the support nubs left when detaching it from the object. Should I sand the whole object? It is a 27cm figure of a women, so it's rather small.
(2) What product/brand works best for resin?
(3) What type of paint/brand works best for resin? Thank you.