You will have 1 year warranty and no we do not have extended warranty, and yes we have all the parts available to purchase over the phone only, you can call us to ask for specific parts pricing.
You do have a separate remote control for the LED light that you may turn off the light. If you need further assistance please feel free to contact our customer service at 800.418.0830
For the Lotus treatment table we do not have the option to add stir ups but we do carry a bed with that option. Below I am adding the link.
Kana Electric Medical Spa Treatment Table (Facial Chair/Bed)
https://www.spaandequipment.com/Kana-electric-medical-spa-treatment-table-facial-chair-bed.html