Replace fuel hoses

Hi all.
Just spotted that my bike has a sticky tape fix on a fuel line so think it might be an idea to change it sometime ...
I've spotted this but just wanted to check I've got the correct ID. And how much do I need? Plus new clips??
I'm guessing I just need to take the air box off to access the lines and won't need to muck about with anything complicated?

http://www.merlinmotorsport.co.uk/p/...2-metre-m-rh-5

Thanks in advance for any help.
Richard.