Hi Ben start of slow with equipment such as nets don't think you need 100 nets to have a good day Ferreting as I and many others have good days with a Ferret and a dozen nets but do buy the best nets you can afford as bad nets make for bad Ferreting Imo a locator and collar depends on how long you are willing to wait if your Ferret kills in on the other hand would you dig 8ft to your Ferret? As already been said try and get out with someone else and see if it's for you all the best pal