What is the approximate monthy retirement and VA Disability check for a retired E-8 with 22 years service?

Trying to find out what roughly my monthly take home pay will be when i am officially retired with 100% disability for congestive heart failure with an ejection fraction of 15%. They are also talking about putting in an ICD, Implantable Cardiac Defibrillator, after my cardioversion next month and i know with the ICD and EF of 15% its supposed to be 100% disable. I am married with 2 kids because i know that is a part of the equation. I also will fall into the CDRP category for my illness. I know there is a huge math problem and only the VA can give you the true number but I am just trying to prepare for my future with a rough estimate and to put my wifes mind at ease on my possible income. Thanks for any istance.