There aren’t any Alpha 16 PCB 10k Log Pots listed. Are the Lin Pots those which are included with the kits? They have audio Pots for the regular Alphas (-PCB) but those appears to have smooth stumpy shafts.
I did find these here in the States. Might these be a good alternative?
Replacement looks good.
If you use A instead or B or B instead of A the circuit will still work fine, it’s just that the “feel” of the volume/gain control will be a bit different. Cheap A pots are almost always piece-wise linear so it’s not a big deal to replace them with linear parts.