What's the longest you've ridden in a day? If you have done close to 500 miles before, then you should be able to. If you've never gone even half that, you might find it really tough. Unless of course you are 20 years old and you're meeting a member of the opposite sex. At that age we can take a lot of abuse just to get there!
A Ventura system works really well for trips like this, and will be easier to sort out for the trip than panniers that clear the exhaust. If your goal is to have panniers long term, then go that route, but if it is just for this trip the Ventura is the way to go.
A Ventura system works really well for trips like this, and will be easier to sort out for the trip than panniers that clear the exhaust. If your goal is to have panniers long term, then go that route, but if it is just for this trip the Ventura is the way to go.