Getting to trust level 2 is not too complex:
Get to trust level 2 by…
- Visiting at least 15 days, not sequentially
- Casting at least 1 like
- Receiving at least 1 like
- Replying to at least 3 different topics
- Entering at least 20 topics
- Reading at least 100 posts
- Spend a total of 60 minutes reading posts
Also you can ask mods to turn a topic into wiki mode where anyone with TL1 can edit.
Anyone with TL1 can create and append tags to a topic, so I would use something like rfc-cycling in all related topics. This would allow you to link them all (and get notifications on new ones) in one step.