You say you use a hole saw ... can i just drill the hole?? And what i need is a Ball Valve (1/2" SS or brass) , The nipple (1 1/2" to 2"), couple of Stainless Washer , Couple of rubber hi temp washer and Hose Barb Adapter at the end of each side ? that's ok ? i forggot 1 SS braid remove from...