I needed several cubic yards of soil to shape a new drive bank entrance, so I now have a ~12' diameter by 2' deep hole in the garden. Over winter and maybe by next spring I will have a pond. I bought a small glass fibre pond on ebay for a header tank into which I will run the rain-water from a downpipe, this will "appear" to run down a stream and into the new hole. At least that's the plan. Always had a pond in another garden but never this large. Main problems are the slope in the garden, and the flints in the soil and protecting the liner. Lots of old carpet and sand I think.
If you buy plants now Sara get a good deal. Nuseries can't get rid of them quick enough this time of the year, but don't expect them to grow. I am going to wait until early spring or just sit plants bought now in tubs etc. Don't pull plants apart now, the roots won't like it. Tub- trugs are great for storing wet pots in with the minimum protection over winter. They won't need any light if no leaves. Or for marginals just drop them in the edge of the pond as you buy them, and lift and pot properly in spring.