After we have custom-made a CRT back for the LCD Panel, we put all the hardwares needed therein, which include logic board, fan, harddisks, sound controller board, and wires.
After several attempts and amendment, We were successful in putting those stuffs firmly and orderly inside the CRT back respectively, we call the whole structure "CRT-shaped Console" because it is now the brain of the new iMac.
In fact, connecting the wires between hardwares would be another challenge, it is because space inside the CRT-shaped Console is very limited. We have to use as least wires as possible to seize every milli-meter inside the Console.
Apart from making a CRT-shaped Console, we also retain the video board inside the iMac. By doing so, the modify iMac will be more resemble to the original one. However, this improvement comes with the expense of a heavier iMac.