I just completed work on a 65lb beaver and based on info I got here, I used what I'd guess you'd call case skinning.
I started the cut on the bottom of a hind foot, fairly close to the where the toes start to branch out from the foot. Stay in the center of the pad, up through the heel and head towards the vent. I cut under the vent and continued across to the other hind foot. Then I cut around the base of the tail and cut the tail off(I suppose I could have taken the cut from the foot directly to the tail, then around the tail and on down to the other foot, but the route I took allowed me to hide the seam under the tail).
Then start working towards the head and watch it, it was a little hard for me to tell where the fat ends and the skin starts, I went through a few times.
I didn't have that much fun working on this giant rodent but it turned out quite nice. Oh yeh, be r-e-a-l-l-y careful with the ears and eyes, it's super easy to cut through there too. In hind sight, I would have tried to split the eyelids after tanning because it didn't work so well on a greasy green, bloody, slippery skin. Did I mention I didn't have that much fun with this?

Oh the whisker butts are a joy also!
I used an artificial tail, filled the feet with epoxy and sculpted them through the skin, had to add length and girth to the manikin.
Have fun! Albino beaver eh, sounds very cool. Is the tail a different color? Post pics if you can!