It's absolutely doable if you don't mind getting your hands dirty.
Biggest problem could be the lines if you live in an area that salts the roads.
I'd recommend replacing both wheel cylinders and brake lines because if one side is bad the other probably isn't far behind and it won't add a significant cost.
In the end you will probably save about $400 doing it yourself.
Order online from Advance and use a 20% off code or go in store and use the info in this thread to save some cash.