Wiggy - stop being silly. If there is no need for these people to serve in war roles then there is no need to add them to the uniform strength. We have civilian MoD staff for those roles. Use your efforts to campaign for additional funding for MoD specialists to be paid a representative rate, including dstl, DI & GCHQ personnel.
If you must change the RAF personnel structure, first have a look at the current trades who have almost zero war fighting roles - like the number of PTI staff that apparently we have little use for.