Concur with the above. If that Office is willing to work you into PLC as active duty in another branch, and your command is willing to pay you to go play with the Marines for 6 weeks, twice, I would jump on it. That way you would get commissioned and separate from the AF about the time you finish your degree.
If you wait til you're done with school, and apply to the 10 week OCC you get it all done in one shot, but you would probably have to separate before reporting to OCS. That's no problem if everything goes well, but if you get broken or they shit-can you, you'll need to look for work.