Are you concerned with the inband insertion loss? If you are not, probably you can try using FR4 (Er=4.6). Try to design for higher orders than the minimal to achieve your out-band rejection.
Of course, printed filter could be used with good insertion loss flatness. If you could afford, try to design with larger bandwidth than your requirement. The flatness of the filter tends to be flatter in small band centering the centre operating frequency.