Longboard build survey

already posted on silverfish, thought it better if i get some local answers as well haha

1 – What Woods are best for working with to make a dancing longboard?

2 – What is the best method of adding concave to the boards?

3 – If the answer is a press, what press design is best?

4 – What are the advantages of a using a vac bag? Would you recommend this to a beginner?

5 – What is the best length and width for a dancing board?

6 – Anything else you would like to add?

I know these questions are all likely answered elsewhere but i need this survey filled out by exprienced people for my research project. I dont need anything in depth, so please, help a brother out