Here is one for you guys to think about. Elevation can be a concern due to temps. But does O2 diffuse into water at elevation (low 02)at the same rate as at sea level and if not then what are common levels of O2 in the water at elevation? Assuming the pond will hold water I would stock SMB , FH and PS. I would add a couple LMB to see what happens. If LMB work then you could stock more and in time they will out compete the SMB. Hedge your bets !