Tried to make a nice and clean build which is also light.
The Hobbywing stack fits in just perfectly, need to be carefull about the LiPo strap.

Photos

Part List

Frame	Rooster (140 builds) Armattanquads.com	$99.75
Flight Controller	XRotor Flight Controller F4 (Micro) for FPV Drone Pilots - HOBBYWING North America Hobbywingdirect.com	$30.80
ESCs	XRotor Micro 40A 4in1 BLHeli-S DShot600 for FPV Pilots - HOBBYWING North America (142 builds) Hobbywingdirect.com	$59.99
Motors	4 x Lumenier MX2206-9 2450KV Motor (22 builds) Getfpv.com	$63.96
Propellers	DALPROP T5046C Cyclone (2 CW 2 CCW) (391 builds) Pirofliprc.com	$2.99
FPV Camera	RunCam Eagle 2 800TVL CMOS 2.1mm/2.5mm 4:3/16:9 NTSC/PAL Switchable Super WDR FPV Camera Low Latency (98 builds) Banggood.com	$39.99
FPV Transmitter	XRotor VTX for FPV Drone Pilots - HOBBYWING North America Hobbywingdirect.com	$32.49
Antenna	Lumenier AXII 5.8GHz Antenna (RHCP) (2pcs) (199 builds) Getfpv.com	$29.99
Receiver	Spektrum Quad Race Serial Receiver w/ Telemetry (SPM4649T) (33 builds) Getfpv.com	$39.99
Batteries	Lipo 1600mAh 14,8V 50C/100C FPV Parcour (2 builds) Mylipo.de	$28.18
Misc Parts	FURIOUS FPV Small Lipo Strap (3pcs)SKU: FPV-0061-S Furiousfpv.com	$4.95