You will get a very varied response posting a picture on here.
To price a job like that you really have to see and survey the job properly,you have people saying it will take between 4 days and some say 2 weeks,and some people have priced it at 2k and some at 6k and up.
The variation in price and time given is massive if you get it wrong you could end up out of pocket get it wright and its a nice job for you.
The difference in price and time on here is to wide you may as well pull numbers out of a hat.
You need to ask your self.
1.do you need the work?
2.do you want the work?
3.do you need extra labour?
4.do you need extra eqipment(like cherry picker,or a longer pole,or internal kit like a dragon fly).
5.could you sub it out to some one?
What ever you choose to do good luck with it.
Craig.