I'm looking to purchase a whitewater canoe
Search canoe and look for the blackfly option post from April. That's probably the only open boat I've seen posted on here in the past year. Also, Sierra Outdoor Center in Auburn had a used (or something similar to a) Spanish Fly for sale.
What's the max weight on the bandit
Not quite sure what you mean by max weight... it's a carbon fiber paddle so it's pretty light.