This is live now and I've noticed that the reported repo size is still wrong. The qclone command will clone the entire base repository, as well as the patch repository, which will usually be considerably larger the the patch repository alone.
I can see how having two command lines present might be too much. But I think you need to at least show the http one.
How about having a little info icon, or the word 'help' or 'more' nearby, which if clicked will lead to a page describing how to clone projects. From there you can also explain to windows users who to use TortoiseHG, the subtleties of patch queues, etc.