All about Boats, Yachts and Sailing

I know nothing about sailing and very little about sailing vessels.

May I please have an estimate of sailing time for a vessel– large enough for ten to fifteen people with small cabins and a good sized cargo area– in days, etc. for sailing from the east coast of the US to the southern tip of Australia?

Also from the west coast, if that is better? Actually, from the west coast would be more logical in this case, I believe.
Those who know of sailing..

I know nothing about sailing and very little about sailing vessels.

May I please have an estimate of sailing time for a vessel– large enough for ten to fifteen people with small cabins and a good sized cargo area– in days, etc. for sailing from the east coast of the US to the southern tip of Australia?

Also from the west coast, if that is better? Actually, from the west coast would be more logical in this case, I believe.

To add to this:
There has been concern expressed that I may be going to try this myself with no experience. I am not. I’m an author. This is research for a story I am writing. I very much appreciate all help and advice in this.

Thank you

Sherry

Felicia