For a 350-size Komatsu, I would not decide from photos, a low price, or the word "refurbished" alone. Make the seller and inspection company prove the exact machine file.
For HQTS or any third-party inspector, I would give them a written checklist before they go:
- confirm the model and serial/PIN plate, engine plate and any visible component tags
- photograph the hour meter, monitor, fault codes and dashboard at key-on
- cold start video before the machine is warmed up
- engine smoke, blow-by, oil leaks, coolant condition and idle/load response
- hydraulic pump pressure if they can test it, plus boom/arm/bucket speed under load
- travel both sides, swing, brakes, final-drive leaks and abnormal noise
- undercarriage wear: shoe width, link condition, sprocket, idler, rollers and track adjuster
- boom, arm, bucket, cylinder rods, weld repairs and frame cracks
- what must be removed for container shipping and who reassembles/tests it in Oman
Escrow protects payment only to a point. It does not make a bad inspection good, and it may not cover "machine is worn but shipped as described" disputes. I would tie payment milestones to inspection pass, serial confirmation, loading photos, bill of lading draft and written warranty exclusions. If the seller will not allow a live video walkaround plus independent inspection before deposit, I would pass.