Default [Q] MTK6589 Compatibility

Hi guys, after spending ages clicking around, and not being able to find my answer, (I don't know, maybe I am just really, really thick) I was wondering if anyone would know which models of phone with the MTK6589 mainboard are interchangeable. That is, i have read about how many phones with these boards are aesthetically different, however contain the same camera and screen and what not. I was wondering, therefore, if there were any custom ROMs out there that would work with my POMP W89, that perhaps don't explicitly mention being compatible with this phone. I have things ready to go to port my own firmware to it, but I was wondering if perhaps someone already had?