multi thread chain

hello all. planning on making a multi chain necklace for the first time. been taking a class and only been doing the basics, which i can do fine, so want to give myself a bit of a challenge, and make a friend a lovely birthday gift at the same time. this is what i have in mind >> http://www.twenga.co.uk/dir-Jeweller...trand-necklace but maybe not that detailed. has anybody done something like this before and if so, is it really impossible for a recent beginner or do you think i can do it ?