Welcome @lukestokes!
Nice to have you here.
- The reason that WCG is -1 in the list is because they don't have any Work Unity progress page like most other BOINC projects. We simply have nothing to display.
- 35k GRC should suffice to stake daily what I know of.
- The stake reward is indeed 1.5% of your coins per year.
- The research reward is a little more complicated, you should look in my ELI5 post I did yesterday about Gridcoin, it explains it in a simple manner.
- You can read more by browsing the #gridcoin tag here, or the Wiki at http://wiki.gridcoin.us.
If you want to chat with others we have an IRC channel, a Telegram Group, a Forum, a Slack channel among others.
Thank you!
I'll check out your post and keep learning. Hopefully I can understand this enough to do a post for my followers at some point.