Violin solo music...?

Hi. Im in highschool and looking for a really beautiful violin solo piece. I have a VERY long time to practice (anywhere from 3-11 months). One of my favorite pieces in Symphonie Espagnole (Lalo) but its a very hard piece for me to play WELL. I want something that will sound very high quality, not just something I can play that will sound crappy. Im not sure what my level is, in between intermediate and advanced I think depending on what your definition of "intermediate" and a"advanced" are. For example, an ideal difficulty piece for me is Eina Klina Nacht (mozart). (i cant play this again tho :P) I love Screichapan's Boroudin String Concerto but I can't find the music. Anyway, this is really long, but something I can preferabbly learn over the summer or just a violin solo piece that YOU like and reccomend. haha, sorry for all the typos and thanks. :P