Amazon:
Tiger Gaming Mouse Feet, Mouse Skate for Logitech G502 Mouse White Teflon Mouse Glides Curve Edge 2 Sets/Pack
here's a bunch of paracord cables on amazon. they are the ones you have to open the mouse and actually change the cable.
https://www.amazon.com/s?k=G502+paracord+cable&ref=nb_sb_noss
Do you specifically want Hyperglides? Or any brand feet?
MaxGaming has Tiger Arc 2s and Tiger ICE, as well as Corepadz
Or if you can't order from these sites, Aliexpress has Tiger feet as well.
Tiger Gaming Mouse Feet,Mouse... https://www.amazon.com/dp/B07SBVSTGQ?ref=ppx_pop_mob_ap_share
Are these those mouse feet? https://www.amazon.com/dp/B07SBVSTGQ/ref=cm_sw_r_cp_apa_i_LxFLFbGGCKQ3D