I did a search, but didnt see an answer...
Is the stock motor on my 94 civic an interference motor?
If it is....
Should I buy my timing belt from the dealer and not risk using an advanced auto one?
Same question for the water pump...

Also, is it smart to just go ahead and replace the tensioner while I'm in there?

The car has 185K on it

 

You always replace the tensioner when you replace the belt. You should be fine with an autozone belt. The engine is an intereference engine.

 

You can sometimes find a good deal on OEM parts package deals (timing belt, waterpump) on ebay. Check it out, definately worth a look. I would not use that Autozone stuff for important parts such as this. Good luck.