Great news about your visa! Hopefully I can help with some of your questions:
1. Yes, non-practising, then you change it to practising once you start work.
2. I sent it with my application (I think, but it was quite a while ago, so maybe best to check on that one, sorry!).
3. I'm secondary so my degree mattered, however for early years I suspect they'll just be looking to see whether you have a degree (of any subject) and then have the matching PGCE or equivalent for early years.
Hope that helps and good luck