The real question is exactly how much of it can you "re-compile" and NOT be guilty of taking their work. Much as Simon stated....if you take the original 1100 - hack off half and name your own half and make up a whole new list...it that wrong and who's going to prove it and how? How many "works of art" poems were even written in that period and who decides what is worth reading again anyway? The actual compilation of an anthology is work and apparently cost some amount of money to do originally, but in reality no anthology work is created in a vacuum.