Replacement sticks for Retroid 4/2 (lost again duh)

Hi everyone

I keep misplacing the joystick caps as they pop off so easily and then end up in nooks and crannies everywhere

I was wondering if anyone knows if this is the model that's used in retroid as Id like to buy them on the cheap from ali as it's free shipping for me (it's $10 on retroid for 2)

jf19-604hl

https://www.aliexpress.com/item/1005007441515569.html

Alternatively, is there a way to buy just the caps somewhere?
I tried the 3d printing route, but it works out to be less robust and more expensive unfortunately

Etsy was also too expensive - $20 or so for a pair