My main target doc. was no2 above (7th NF war diary), I promised myself to go and copy the war diary, I've kept that promise for 30 years and finally got off my butt and gone and done it.
I've probably wasted my time though as the National Archives are digitising the WW1 war diaries to be published on-line as part of the 100th anniversary of the start of WW1, but they won't appear until close to the actual time (Aug 2014). Note -some (a small percentage of) WW1 war diaries are already on line with the national archives but not this one.
Thing is - this box of documents at the NA described as the 7th NF War diary contains a
vast amount of casualty lists and movement records of the men as well as the standard war diary pages. I'm not sure if the NA are planning on copying everything or if they are just sticking to the basic war diary pages, its quite a task if you include all the accessory lists and other material as well.