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For grading with an RTK GPS open source skid steer such as Lifetrac v25

Industrial-Grade Drone LiDAR Stack – Parts Cost Summary

Component	Description	Estimated Cost (USD)
GNSS / RTK Positioning	SparkFun RTK Facet (L-Band) or equivalent SparkFun RTK base/rover setup (u-blox F9P class)	$740 – $1,500
LiDAR Sensor	Livox Avia or equivalent low-cost 3D scanning LiDAR suitable for aerial mapping	~$2,079
Navigation-Grade INS	External GNSS-aided INS (mapping-grade; required for absolute terrain accuracy)	$3,000 – $6,000
Flight Controller	Pixhawk-class autopilot (for flight stability, logging, synchronization support)	~$140
Companion Computer & Storage	Onboard computer for LiDAR capture, timestamping, and data logging	$200 – $300
Power Distribution & Regulation	DC-DC converters, wiring, EMI management	$200 – $400
Mounting & Vibration Isolation	Rigid sensor mount, vibration dampers, structural hardware	$200 – $400
Total (Parts Only)	Does not include airframe, propulsion, batteries, radios, or software licenses	$6,300 – $10,300+

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