530H 5.0.2 Stock ROM port for 530BT?

Is there any chance anyone will ever do this port?
Or, if it's easy/understandable for newbies, can I do it by myself?

I mean, my version only exists in Brazil; but its only difference from 530H model is that mine has Digital TV.

Also, I'd like to know if I can try to port custom ROMs from other models, such as Cyanogen.

Thanks! :D