All in all, I would imagine you might just about be able to cover the full cost of this for ten pounds, if Aldi does sell a small chicken for £2 at all. Not being near enough to Aldi myself to just pop in, I rely on memory, which suggests that £3-4 is more likely. There are utensils to factor in. Do you have roasting tins, a stock pot, a reasonably good knife? Come to think of it, do you even have an oven and a hob?