Well, not a real one, but an identical fiberglass copy and, a WHOLE lot LIGHTER.
Great Guns Historical Cannons in Peoria, Illinois, will be happy to make one for you for a cost of between $3500 to $4000. It will be the tube only, which means the cannon barrel. You'll have to take care of the carriage yourself.
They have a website at www.greatguns.org
I went through it looking at Naval and seacoast cannons and found these among the ones they were offering. The price and length of the tube follow:
8 inch Columbiad, $3,697, 124"
32-pounder sea coast gun, $3,597
10-inch Rodman, $3,877, 137"
6.4-inch Parrot, $3,877
6.4-inch Brooke, $3,877, 142"
The Brooke originally weighed in at10,600 lbs, but the fiberglass reproduction at 160 pounds.
Worth a Look. --B-R'er