I am going to build a hive and have a couple of questions
Im a beginner and need a bit of patience
The hive i am looking a building is the 10-frame Langstroth hive on this website

1st question
What is the suggested spacing of the fames in this hive?

2nd question
Where can i obtain a queen excluder?

3rd question
What does everyone think of this mouse guard?

4th question
What is a recommended bee equipment supplier in Australia?

5th question
Is there anyone in Australia that makes these frames or has a jig to make them for this hive or plans for them?

Thank you for your time