Eric, they only source of large divisions of these 2 species that I am aware of is much farther than 4 hours from you. Are you willing to drive a little west of Birmingham, AL, or pay for delivery? Check out the bambooweb site and contact the sources listed in NC, but my guess is that Roger Lewis is your best bet.

have you tryed mid atlantic bambbo? would be a might closer then al. depending on where your at maybe 4 hours or less.. http://www.midatlanticbamboo.com
with the amount your wanting to buy it would be a whole lot cheaper to get them your self then paying for shipping. even if it does waste a day in drive time.