I personally like tips out back too, and there should be no worry about your fuel line.
I would keep the cats, 2 minimum if you plan on straight pipes. All v6's should have mufflers, the only exception is if you have a prochamber like slosix, I've heard one v6 with one and no mufflers and it sounded decent.
No cats and no mufflers is going to sound pretty bad, I think v8's sound like sh*t with that setup.
If you're on a budget and can't afford a fancy setup or an aftermarket catback, take it to a shop, have them run divorced dual pipes after your cats all the way to tips out back. If you want mufflers pick up some dynomax or chambered cherrybombs for under $100 and call it a day. You'll be louder than stock and have that dual exhaust look.
Oh and make sure you don't get chrome tips, damn things will rust out on you in a year or two...stick with stainless steel.