JOHVAN,
I do recommend you the 2 volumes History of JG 300 by Jean-Yves LORANT and Richard GOYAT, a fantastic work about that unit, with several beautiful lateral paintings, charts of losses, combat missions, interviews with veterans and hundreds of pictures. You won't be disappointed, believe me.
Here:
http://www.amazon.com/300-Wilde-Vol-.../dp/0976103400
Humbly yours,
Adriano