This ROM is pretty basic, you can add a lot of stuff yourself however, stuff might be in one of the (old) addon packs. Let me comment on your list:
Weather widget: I don't know, don't use it, I use HD Widgets
FM Radio: You can flash that through one of the addonpacks, then you still might mis an interface file, Yank however, supplied this missing file in a zip,
found in this post.
Seriously, (almost) everything from the stock HTC ROMs can be used on this one, as long as you make sure dependencies are restored (as far as these aren't yet in the ROM). You can eg. download 2.8 Overloaded which is a version which as all libraries.