If you want to do a network install you can go ahead and do that now, most days rawhide installs fine in the last few weeks, but be warned its not a 'sure thing' for your hardware. Some machines it won't install on every day. You should not start with the Beta unless you're very comfortable working with Fedora rawhide because there are a number of critical bugs that you will get stuck on -- they are fixed but the Beta install gives you some big bugs you have to get updated right away.
Either do network, or wait for the preview as suggested.
- Andrew <firstname.lastname@example.org>
No one now has, and no one will ever again get, the big picture. - Daniel Geer