very much possible...all you need to do is bring them under visit visa and later submit the documents well before her visit visa expires..say around 2 weeks before including a visa change application form from any typist with your salary certificate,marriage certificate,bank statements,education certificate,passport copies of both and id card copy and submit for RP in ministry office in gharaffa at gate 4 in the morning.

ps:make sure you extend her visit visa on time if it expires irrespective of RP application status..