To work with HMC is very good indeed, n its not really possible to say how long it would take to get on a flight but as HMC is a reputed name here in Qatar should not be very long.
And u could sponsor ur husband once u r in Qatar if u earn QR 10000 or 12000 above, but i guess it would be better to get him on a visit n then apply for sponsoring him at the same time, let him look for a job