Jizz this question is highly dependant on a few things ie: You natural genetics(the fat that you were fat before means that typcically you may gain fat a bit easier then others..Also how clean your diet is(honestly take a look at my clean bulking thread so you can understand how to separate macros,and also see WHAT clean foods are about)..Another thing is that I wouldnt NOT cut cardio down to 1 time/week,and instead I would use a few HIIT sessions/week,or some fasted state cardio in first thing in the morning to help keep fat gain to a minimum.....DR.X gave you some good numbers off the top of his head so eat that way with clean foods,and you shouldnt gain too much fat..

One more thing to consider, this is why there are such things as bulking phases,and cutting phases.You MUST realized then when you're putting on size you're going to put on a bit of fat as well,but fear not because you can always cut later to bring out your gard earned muscle.