Fbr e-filing for overseas pakistani investing in dha

Has anyone recently bought a plot as non filer ? If i am planning to buy a property in dhai (estimated budget 8to10 million), and as i am a non-filer, so if i don’t become filer due to short trip&lack of time, then would fbr make any problems? I would pay the designated 4 percent advance tax too… My source of income is outside pakistan which includes remittances transferred via banking channels and few amount is transferred in person by hand. (not wired) will the amount i brought in by hand make any issues ? Suggestions needed and thanks in advance…