Somebody should be able to 3D print an exact duplicate in polycarbonate if you can get them the correct dimensions.
So guys, we finally removed the woofers last night. The right side port tubing is made of cardboard and I am now understanding what about the "Inner Diameter" being 3-1/2" since the port hole itself is 3-1/2". Seems there is a lip around the port's hole to accommodate the 1/8" wall diameter and it is glued unto that lip. So now I can try to find a cardboard tubing with the dimensions since the missing left side port tube was not in the Cabinet.
Anyways, there were 2 screws missing so I will need to order those, they are hex screws.
Also, the attached is a pic of the woofer, I have written to EAW to confirm the specs of that woofer.