Welcome to the forum.
Hey man, you can't expect us to do all the work with so little information.
For a start, do you intend flying part of the way, or using ferries? Strikes me there are two bits of sea to cross. Having selected your ferry terminals or airports, now calculate the land miles you will have to cycle. As a self confessed newbie, you would possibly cycle 40 miles a day for the first few days, increasing to about say 65mpd after you had got yourself cycle-fit. You would cycle for perhaps 6 hours a day at first, but this could increase later. Of course daily mileage will be less if you are carrying the full camping gear, more if staying in hotels and travelling light.
Ok, so now you you have calculated total mileage and miles per day, you can work out how many days of cycling it will take you.
Add on an extra day for every 8-9 days, you will feel like a rest day now and again, and add on some more for delays while you wait at ferry or flight terminals.

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That's it, now you have worked it out for yourself.