adopting a male is better than another female.With 2 females,theyre can be dominance issues between the two.But they could become the best of friends! and not have any issues.
That mix sounds great for you,since Border Collies and Malamutes tend to be more active.I think,as long as you give them the love and care they need,they will turn out to be a wonderful dog.Just think about the good traits of both breeds,and he will most likely have good traits from both breeds.
I adopted both mine without knowing about theyre breeds.Since Kodie has bloodhound in him,he's very stubborn and hard to train but he's very smart!And Lucy is Spaniel and or Flat-Coat mix,and really dont know much about spaniels and flat-coats.She's been easy to train so far.

Is theyre any pictures of this boy you might adopt