I believe you may post your requirement in
Currency exchange section of this forum along with mentioning about your fiat based transaction. For fiat transaction, it would be better to find a local seller so that you may meet in person and get bitcoin with at least 3 confirmation and then hand over them the fiat. So, you need to mention all these and if there are any seller available in your local area from this forum then I guess you may finish off with negotiated prices which may be a possible lower for your fiat transaction.