My bad, I completely forgot that the AWE64 doesn't have a wavetable header (one of the reasons I got rid of my AWE64 Gold for an AWE32 😀 ).
Still, as Great Hierophant stated, there is the adapter option and the total cost will probably be around as much as an SC-55 and you are:
a) getting brand new hardware
b) supporting community endeavors
c) IMO better and more flexible sound than SoundCanvas
But that's just my opinion and besides the point perhaps, I just felt the need to offer an alternative as well. The SC-7 you recommend derSammler is also a great option, I picked mine up for 40-50E many years ago from Salient (I wonder what he's up to these days!) and it has served me quite well.
Haker120, can you tell us the individual prices that you've found for each module? That way we could tell you which ones are worth it.