Would it be possible to carve the blade like that from a stick from Canadian Tire and curve it using a flame?
Curving wood blades can work, if you know what you're doing, and if you're only making relatively minor changes. But I don't know about "carving" it (ideally you'd want something like a jig saw and a belt sander to re-profile the bottom of the blade), wood blades are generally wrapped in fiberglass, you'd be chopping that off which would seriously affect the stiffness and durability. You could try adding another layer of fiberglass, but then it might start getting a bit heavy.
For a somewhat similar retail curve, you could try the Warrior Gionta. Like Spezza's pro curve it has a low lie, a relatively small amount of rocker, and is a toe curve that's not too open:
Adam Oates used to be like Michelangelo, carving, sanding and shaping his wood sticks. Then he'd take a blow torch to the blade to heat them up, and bend them to his liking using the dressing room door. Have at it and experiment.
He used a file on his blades. Like a hand filer, you know a big one about 7 inches long they use in garages for metal? He filed the end of the blade to a point and then angled it off with a hack saw then cleaned it up again with the file. The he blow torched it to get the extra cup on the curve. But now easton makes the curve as close as they can for him, but back when he was using wood sticks he did it for himself until sherwood stopped making retail sticks so they just did it specifically for him so when he opened a box they were already filed and curved to almost perfect.