How long does a Fully Built ship take?

How long does it take to bot a ship to completion? I will be using a Doubler/Rebate.

I would like to Bot until I max out Castles, Skills, extra slots, etc. About how long should I expect to be botting?

Is there a more efficient way to earn pearls?

About a year lol

I figured that would be able what I should expect. Thanks!

I guess I am in the market for a ship on a US server. :P

It also depends on events,e.g. you can easily make pearls on group maps.