Why do you need a license to buy a property for yourself? You can represent yourself and a license would add little, if anything. I would like to think that using a Realtor would bring you knowledge or a skill set you do not possess - and a fresh set of eyes - and I'm not sure that simply getting a license for a one time transaction would get you that benefit.
Some folks here, not Realtors, have negotiated their own sales and purchases.
Awgee, please pick up the white courtesy phone. Paging Mr. Awgee.