I am looking for a retractable landing gear for a ~10 kg radial octo-copter. It need to have legs long enough for about 35 cm clearance to the ground.

I am considering on the Tarot landing gear T810 / T960.

If you have experience with this model, please tell how well it works.

Are legs and folding mechanism strong enough for a 10-15 kg load?

When retracted does the landing skies block much airflow under the left and right propellers?

What alternative retractable landing gears would be better?