I went to Lion Brand looking for Mohair Look's info, but I don't see this yarn - I only see Moonlight Mohair. The Sensuwool you want to substitute for looks rather smooth, but the mohair yarns I'm familiar with are pretty hairy. I would think you'd want to find another smooth-ish yarn. What are the other two yarns you're thinking of using for the Mohair Classic and Chinchilla - or are you going to use those? I do like the look of this coat.
Have you tried yarn search features? Quite a few online retailers have a yarn substitution feature. You can search for alternate yarns based on weight, the composition etc. - have you tried this? Or are you looking to buy at a lys? Take the gauge info and maybe the look and composition of the yarn to a lys and maybe someone can help.
Sorry I don't know of any specific yarn offhand.