What's wrong with ground beef? Get the fattest/cheapest kind and wash off the fat in the sink. Milk, while nice, is not always the dietary lynchpin that's made out to be.
http://stronglifts.com/madcow/Topics/Microloading.htm
I can tell you don't know what's up. You seem to think that without a steady stream of deadlifts, your back will wither and decay. There's a reason why the deadlift frequency goes down. As your deadlift weight increases, your ability to recover from them will become more difficult. This true of any exercise, however it is even more so with the deadlift, an exercise that starts from a dead stop. Why the need for so many deadlifts?
Also, what are deadlift and squat numbers like now?
See my longer post at the end of the last page.