Actually, something like this isn't bad to get on eBay. Backdrop stands are pretty low tech, not much to goof up although they do come in differently qualities.
Cloth backdrops are also available there. Narrow muslin (like 6x9 feet) is fairly inexpensive but really designed for portraits, not full length shots. If your room is also backlit, you need to be sure you get a good grade of muslin otherwise the backlighting will show through.
If you are talking about seamless paper, try somewhere local. The price is cheaper at a place like B&H but shipping something that heavy costs a bunch.
Cloth backdrops are also available there. Narrow muslin (like 6x9 feet) is fairly inexpensive but really designed for portraits, not full length shots. If your room is also backlit, you need to be sure you get a good grade of muslin otherwise the backlighting will show through.
If you are talking about seamless paper, try somewhere local. The price is cheaper at a place like B&H but shipping something that heavy costs a bunch.