on the dog part, i'd get a beddy/whippet mate, should be able to pick one up off here for about £50-£100.
keep it on dry biscuits till about 10 month, then start taking it out in the day, but make sure its obedient enough, to come, stay, etc etc.
ask about for a beddy/whippet, cause it's got bedlington in it, it's part terrier so you can use it for hedging/bushing pal.
anyway, when its about 10 - 12 months, get it on raw rabbit etc to help it get the taste for it. then take it lamping, and aslong as it doesn't yap, and will do as it's told, your bags will soon start getting heavi