1. I think you could keep making the villager eat, but they won't be healed.
2. When the Gong grants luck, an event happens shortly after.
3. A certain event gets you an extra elder, try seaching the forms more info on this event. There is also a glitch that SOMETIMES (very rare) gets an extra elder. I don't know if it's even a glitch.

Them are clothes that have been modified. You would need to be a graphic editor and know what you're doing to edit the images. I made a thread about modding in the Fan Art, I'm sure you can find it.

You can also download and use mods that others have already created. You can find them here.

If you can make stews, there is a stew that will fill the health bar. I don't know if it heals the villager, but it will make them live longer, possibly long enough to get an event with another villager!

You can find the herbs you need in the guide.

Ah, you posted here before I had a chance to reply ... yes, the stew that totally replenishes and heals the villager would fill up his health meter ... hopefully he/she is well enough to do all the necessary steps to MAKE the stew, herbs and all.

Is there a Guide for that Krystal? I found the recipe for that stew by pure accident - didn't I get lucky!!

Yes Jen, there is in VV2 Guides section:
Stew recipes