how to randomly select a neighbor patch that has a higher elevation in netlogo

how to randomly select among all the neighbour patches that are higher instead of the highest neighbour patch? I was thinking to remove (if elevation >= [elevation] of max-one-of neighbors [elevation] [stop]) and place "[stop]" in [move-to-one-of neighbors [stop]]

to move ; a turtle procedure

if elevation >= [elevation] of max-one-of neighbors [elevation] [stop]


ifelse random-float 1 < q
[uphill elevation]
[move-to one-of neighbors]

end