Cabinet project

[dimitrov]

I have bought a pair of cabinets. Some old project for altec 416, or Tad 1601. This is all the info I have , from the seller. Can somebody help me to investigate wich is the driver more suitable to the enclosure?
Dimensions external :120cm(47.24) tall, 76.2cm (30)wide, bottom deep 59cm(23.22), top deep 51cm(20), 21mm BB ply
The port is 9cm from the bottom 28cm(11)/8cm(3.14)
Center of the speaker is 45cm(17.7) from the bottom.
The position of the speaker and the port are just drownings on the plywood, not cut. There is a 18 inch plywood tractrix 2 inch horn mounted 8cm(3.14)over the speaker position drawings .
Regards!!