The problem you face is antenna length/height and radiation angle, for antennas of that gain at those frequencies.
(eg: typically 5 to 9 metres in length)
I would recommend a ground independent end-fed half wave mobile antenna such as this. (I use them for 2 metres... great performer)
It doesn't have quite the gain you're asking for, but it has good radiation angle acceptance and a length that's manageable in most ceilings.
Note... any antenna installed in a ceiling space will not operate well (if at all) if there is a metal roof, or metallic foil insulation under tiles, etc.
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