How steep does the rolloff need to be? You might do best with a high pass filter and a lowpass filter. I've also seen several bandpass filters used together as a means of widening the passband. This leaves a good deal of ripple in the passband, however.
Please let us know what your stopband needs to be.
If you're matching the S parameters of the RF amplifier, then you don't have much choice in which values to use. You can usually make either a lowpass or a highpass filter, depending on what the matching parameters you have are. I would suggest choosing either a lowpass or a highpass filter to match the S parameters, then if you use a lowpass filter on the input to the filter, use a high-pass filter to do output matching (or vice-versa).