All info on the Airdrop can be found the SPS Whitepaper (Link) normally each day there is a snapshot and once it is done everyone gets their share of the daily SPS that is given which can be claimed. I have no clue if there is a minimum amount needed in order to get tokens airdropped. You should have enough to at least get some SPS I would say, You might want to ask in the Splinterlands Discord, I'm sure they can help you out.

Nice to ready that you are up, going in with conviction looking at the long run and keeping close track while adding during the dips for sure is the way to go which shows for you.

I don't have any doubts about the team. I'll have a look into https://docs.polycub.com/ as I would love to fully understand what it's all about exactly.