Anyone find correct looking leg caps for 3 legged Offset handle SJs?

[PotsieWeber]

I acquired an old 3 legger SJ where the leg caps had been replaced with some black rubber ones.  I found some caps that look somewhat close (based on pics), but they are rounded on the bottom & I assume the real ones are flat on the bottom.  Also, these look too long so I'd have to cut them down.

Alternatively:
1) Can anyone confirm they are flat on the bottom?
2) What is the measurement from the bottom of the cap to the top.

Thank you for any help you can provide.