As someone who sits on boards in an AFRC unit I would say take the Ip school slot. I would give you a questioning look if you told me you turned it down to get out, unless your wife was a millionaire or you won the lottery. I see your point, but, the bigger picture is to improve yourself professionaly, which taking the slot would do.
Realize that ANG/AFRC units have to fight for slots also...so it is not a guarantee you would go immediately. Also out unit, like others, wait a bit to keep an eye on someone coming right off AD to see how well they are meshing with the part-time mentality.