Unfortunately I've bad news on WMKK. For the Main Terminal and its satellite, it is not possible to exclude the original jetways legally, because they are part of the terminal model. So without the help of the developer it won't be possible to equip that terminal with GSX v2 Jetways without changing the model, which is not allowed due to copyright.
If I find some I time, I may consider contacting the A_A scenerys developer and ask him whether he would allow to change the model and share these files to make it compatible to GSX V2 Jetways.