Just a quick question

You got it wrong.
Check this thread: https://www.steamgifts.com/discussion/XaCbA/list-of-all-cv-levels-and-their-corresponding-real-cv

1. It's all in that thread
2. Same as above
3. Games are valued accordingly to their price in the US Steam store
   • 15% of their value if they've been bundled, 100% if not
   • "bundled" is a misleading term, a game could be considered as such if it's been heavily discounted, but not if it's been in the highest tier of a bundle.

Not at all. Level 1 just means you've made a contribution. You need to have given at least $25 to get to level 2. All games are at their full price value, unless they are on the bundle list, in which case they're at 15% of their initial value. If you want a way to track how close you are monetarily to the next level, check the real-cv tool on sgtools.info

What Mike90 said. Also see this site to check how much more CV do you need to level up:)

EDIT1: If you wanna check if a game is counted as bundled use this
EDIT2: Games can be retroactively added to bundle list, so check the games waiting in a queue for adding to - here

You don't have to giveaway games with increasing value. You could give away 50 .50 cent games to reach level 2 so long as they weren't all the same game. After giving away a game 5 times it drops in CV.