So in 6 months your husband has flown 100 hours and only got his instrument rating?
That's slow. Very slow. You can go from 0 to all ratings you need and 500 hours in 6 months. I flew 400 hours in 6 months when going for my career change (same age etc as your husband).

Is your budget limiting the hours he is flying?
You do realize he won't get a job at 250 hours with just his commercial? He'll either need to build a few hundred hours more to get up to 135 VFR PIC minimums, get his CFI, or get extremely lucky.