hi
if you're going between may and september the fleece sleeping bag will definitely be warm enough, sometimes even too warm and you'll have to sleep with it open
by the way, what's a pounder sleeping bag?
get all leather, rather than leather and mesh new balances (speaking from personal experience here) and spray them with silicone before you go. on rainy days pick up a newspaper somewhere along the way so you can stuff them in your shoes at night. the paper draws the water out of the shoes, especially if you can change it once or twice.
i walked in 2000 and it appears there are a lot more pilgrims now, so there are probably more amenities too, but i didn't always find it easy to buy food. in small towns, the grocery store was often just a room in someone's house that was open only a few hours a day. if you weren't there when the store was open, you were out of luck. you'll probably have to plan ahead a little more and carry some food with you just in case. my vegetarian friends even had a hard time getting ensalada mixta without the tuna on it.
in the summer you'll find spanish peanuts, olives, raisins, spanish melon, watermelon, and those funny flat peaches--yum yum yum