You can pick up an Eastwood fender roller for under $100 when they're on sale (definitely don't go the bat/pipe/phonebook method!). Rolling really is a simple process, it just takes the right tools and patience. Watch demonstrations and tech videos before you try anything.
Just take it slow, apply generous heat, use a heat gun, hair dryer won't be hot enough unless maybe doing it in the dead of summer, and don't roll too tight. The paint can only stretch so far before it cracks, regardless of your method.
I advise against letting someone else do the rolling for you. You will either pay way too much to have it done right, or pay $100 and risk someone ruining your paint. And, if you buy a roller, you can charge your buddies to roll their fenders or rent the tool to them.