Save yourself some money and buy your parts on clandestine or brill armory. They have more quality parts at a fraction of the cost. Before I start naming internals, what kind of battery are you running? Do you know how to properly shim, correct AOE, and etc.? If not I'd recommended reading the stickies before you get yourself into teching.
Now as far as internals go, motor wise I personally would skip the Lonex and pick up a SHS or ZCI high torque. The SHS will be roughly the same performance of the Lonex but it's cheaper. The ZCI will have more torque (better trigger response) but it will be slower. The Prometheus barrel is fine, but you don't really need the prowin hop-up. A Lonex hop up chamber will do the same thing, but cheaper. Not too sure about the bucking, but ditch the H-nub and pick yourself up an M-nub and Rhop. Read the stickies about flat hopping and just flat hop the stock bucking too use with the Rhop and M-nub.
Now as far as internals go, motor wise I personally would skip the Lonex and pick up a SHS or ZCI high torque. The SHS will be roughly the same performance of the Lonex but it's cheaper. The ZCI will have more torque (better trigger response) but it will be slower. The Prometheus barrel is fine, but you don't really need the prowin hop-up. A Lonex hop up chamber will do the same thing, but cheaper. Not too sure about the bucking, but ditch the H-nub and pick yourself up an M-nub and Rhop. Read the stickies about flat hopping and just flat hop the stock bucking too use with the Rhop and M-nub.