I take it you would like to hit an Albino Pied since you have the possible double hets. I would not breed the male possible double and purchase a 100% Poss DH male and breed him to both females. This way you can at least prove them out possibly and maybe hit a visual Pied, Albino, or Albino Pied. Long process but that is the fun part with recessive genes.

The other pairing sounds good.

I would not recommend multiple sires in this scenario would get too confusing.