Hi there. My girlfriend is submitting her documents tomorrow.
There is a thread similar to this one (search under girlfriend and uk visa I think). Anyway, your list seems extremely comprehensive and you have worried me compared with what we are submitting lol (you can see in the thread mentioned above what we've prepared). We have the added worry of her being a university student and no personal income but we have been together for 2 and a half years. The level of information required just for a holiday is ridiculous. I'll let you know how we get on, but to give you some peace of mind, I think you'll be ok ... sorry that doesn't really help you :-). If we get approved, you certainly will and i'll keep you posted.