I wouldn't touch that turbo you linked to on kijiji. I don't know how many times the guy says 'mint' in his ad but that turbo is far from mint. Looks like he just painted over the exhaust manifold/O2 housing/downpipe and in the last picture you can see rust still showing beneath the paint! And he painted the wastegate actuator also without any prepwork!
If he's willing to do cheap crappy work like that to make a sale, you're better off finding something else.

Also, I can see by the serial number in the pictures he's shown that it's a 14b. 4917801-030