Hi, new to metal detecting and looking to purchase my first metal detector. I have about $650. Looking to use it for coin, jewelry and relics. Just wondering what would be the best general metal detector for this range. I was thinking about the ATPRO but am not sure if there are any better options. Also, later this year I am hoping to get a dedicated gold detector, any ideas on the best suited detector? Does anyone know if a an 11" DD coil is interchangable between the Fisher F 5 and goldbug pro?