Buying a house without a Realtor is easy. Get a good rea easte attorney and your own inspector, if you think that is needed.
As a developer, we have our own sales staff who are not Realtors, but deal with Realtors often.
No big deal, in your case.
Sometime the Realtor screws up the deal. Just know your comparable properties in the area to make sure that the price is right. You can get that from your local assessor's office.