Well, my old VHO's were over 55lbs without tires. Look around for some 16's if you can get a full set it would be awesome. They will make a big difference in et's, since they are so light. If you try to match your 275-45-20 size then your gonna need a tall slick, about a 29-30in. Try craigslist or your local paper there are tons of people tryin to sell their factory wheels.
-Chris