What I learned metal detecting and what I would recommend, is rather simple. One, I would put the smaller coil on the machine 5 x 8 with a cover, it makes the machine much lighter and more balanced. I am not inclined to dig post holes and am happy with the depth I obtain with this coil. The pro-pointer goes without saying, I have found small finds that I never would have found otherwise. I own a Sampson T handle shovel (the 31" one), it makes life so much easier along with a good hand digger. I purchased my hand shovel from Kellyco and I put a motorcycle handle grip on it, perfect. Next you need some kind of pouch to put your stuff in that you dig. Again, I don't want to be taken to task for mentioning a brand but the one I bought is military origin and the bag has a mesh bottom so all the dirt falls out as I walk and dig, love it. The sheath for my digger is open bottom too so any mud on my digger falls off as I walk. One time I used my wife's car and threw my bag and digger in the backseat when I was done with the hunt (prior to this type of bag) and all this dried dirt came out and spilled all over the rear seat of the car, what a mess, it was the Garrett bag and the standard sheath. Haven't had that problem with the mesh bag and open sheath since. I don't care what brand you look at but it is something to think about. Also on the Sampson I added a sling, which I purchased at a gun shop, makes carrying the thing so much easier; I carry it like a gun over my shoulder. Also I purchased a small waterproof flashlight so I can look inside those holes and if I forget and walk into some water it won't be ruined. And finally the Grey Ghost headphones for when I am not thinking and stick my head into water or it starts raining and I want to stay out. Also, for those rare times when I walk a stream I have a small scoop I carry along nothing fancy, just need to get the job done.
Again let me be clear, any brand from any supplier works... so don't tar and feather me thinking I am trying to sell something; I'm not. I am just an old man who swings a detector as time permits, nothing more.