In reply to mason_7: It might seem obvious, but I'll say it anyway: why not have a go now and see how you get on with what you've got?
Trying now, before the worst of the winter chill sets in but there's still enough cold wet dark to test things, will show you what's good about your kit, what's not so good and teach you a few tricks to make you canny and comfortable when it gets properly brass monkeys.
My thoughts? Pick a route that gives you two camping choices: one where you want to be, another where you'll go if the weather gets more sporting. Take a bit more fuel and food than you think you'll need - hot food can be a great comforter - and take a water bottle than can cope with being filled with hot water. Just before you turn in, fill it with hot water and you've got a hot water bottle for the night and (experience proved this) you'll have liquid water for a morning brew if everything's frozen outside.
And enjoy it, even if only in retrospect.
T.