I think this is a decent goal you have for a starter. If you succeed, you should increase
Good luck with the farm. You'll need to make 3m a day to reach you goal, which is very easy to do.
Running 4 accounts in f2p at 50k each should easily allow you to reach your goal, even go over depending how many hours you bot.
Tips here
http://osbot.org/forum/topic/104173-guide-to-gold-farmin/page-6#entry1248476