Low Price Heavy Lift Octocopter for DSLR Suggestion

[AM7000000]

Hi Guys, I';m new to configure Multirotors, please guid me to complete this system. I need this system for aerial mapping/filming with Nikon D7100/Canon 5D MKIII. Budged is about $3500, most important thing is smooth flying for about 10 min.
I researched a lot but I';m not sure about Motors, ESCs, Propllers, Batteries and I don';t know what other things i need.
Thanks a lot.

Frame Parts:
1x Quadframe Foldable Octo Pro frame 1090mm with 495mm arms $320-1400g
1x 310mm clearance landing legs $135-500g
1x DJI and similar controllers support plate $11-20g
1x Protective cage for sixcopter frames $20-40g
1x 175mm clear dome $10-5g
1x Top LiPo battery TRAY $20-20g

Gimbal Parts:
1x XM41170b Brushless Two Axis Carbon Camera Gimbal Kit $160-1000g
1x 2xBM5208-75T Brushless gimbal motor 5D2/5D3D800A900 etc $140-380g
1x EvvGC 3-axis MOS Brushless Gimbal Controller $30-30g

Engine Parts:
8x T-motor MT2826 KV380 30A 75g $720-1500g
8x 13x5.5 DYS Carbon propellers $65-40g
8x Hobbywing FlyFun-40A-OPTO ESC $240-280g
1x 200A Super Hungry Board Multi-Copter Power Distribution $15-130g

Pilot System Parts:
1x HKPilot32 Autonomous 32Bit Control Set w/Power Module $130-155g
1x Ublox Neo-7M GPS with Compass and Pedestal Mount $35-45g
1x Minim OSD v1.1 $20-20g

Communication & FPV Parts:
1x HKPilot Transceiver Telemetry Radio Set V2 (915 MHz) $40-130g
2x Boscam Thunderbolt 2000mW 5.8GHz FPV Transmitter $180-340g
2x SkyZone RC32S 32 Channel 5.8Ghz Auto Scanning Video Receiver $70
1x Mobius ActionCam 1080p HD Camera Set With Live Video Out $70-90g
1x Bar Mount For The Mobius ActionCam $7-60g-10g
1x Fieldview 777RX LCD FPV 800 x 480 with Built-in 5.8 GHz Rx $100
1x Hobbyking 3-Channel FPV Video Switcher $5-50g

Camera Control:
1x Infrared Remote Shutter Controller for Nikon Cameras $10-10g
1X1x Infrared Remote Shutter Controller for Canon Cameras $10-10g

Power Source:
2x Turnigy nano-tech 5000mah 4S 35~70C Lipo Pack $110-1060g
1x Turnigy Nano-tech 2200mah 3S 45~90C Lipo Pack $20-200g
2x Turnigy 9X 9Ch Transmitter w/ Module & 8ch Receiver (Mode 2) (v2 Firmware) $60

Other Parts:
2x Universal Carbon FPV Monitor To Transmitter Mount System $20
2x FPV Monitor Mounting Bracket/Silver-Universal $30
1x Hobbyking™ T682 AC 6s 10A 90W Charger/Discharger $50
1x Hobbyking 2-8S Cell Checker with Low Voltage Alarm $5-25g
1x HobbyKing™ Cellmeter-7 Universal Digital Battery Checker/Balancer $10
1x 6v BEC for camera mount supply $7-25g

Kit Price about $3300 and about 7700g

[flybywire]

Hi

There';s a lot of reliance on HK parts there, whilst I';m not in any way adversed to HK per-se, I would have thought you would have considered at leat a DJI Naza V2 for FC, if you don';t have the budget for WKM or A2?  It';ll also give you low cost options for OSD and waypoint functions if you find yourself needing them in the future.
It is one heavy bird!

Just my thoughts.

Oh, and T-Motor carbon direct mount props are a must!   

[soggybottoms]

run it thru ecalc. check your esc ratings