Hi Bionic,
unless you are itching to get going I wouldnt get them now. Unliss the house is in perfect condition ( and well done you if it is!) Then you will probably need to do some renovation and repair both inside and out. I would get all this done first especially if you also go out to work.
If you move in 6 weeks time the clocks will have gone back and the shorter days will be starting to show.
Although some breeds lay better that others through the winter, as a rule of thumb - Autumn is when many birds moult which affect their laying and some most hens stop or seriously slow down with the shorter days.
Also, you will have to take care of them through the worst time of year and get little of the pleasure and most of the hard work (like keeping their frozen water defrosted)
Most breeders raise chicks in dec and jan so you could purchase growers or point of lay hens next year. Many people will have birds of different ages and sizes available locally as long as long as you dont mind what you get. If however you fancy a specific breed in a particular colour then you may need to wait.
Personally I would spend the autumn and winter tiding everything up, repairing fences, pruning trees, building coops and digging over veg plots as well as reading, planning and reserching. That way come spring you can really get going.
If you decide that you want the chickens sooner rather than later, I'm sure that those of us that breed them can sort you out with some.

Buffy
Shorter days affect their laying