We also bought a Richcraft house. We asked the saleslady whether we could adjust the driveway location (left or right) because we preferred the driveway on the right. She checked the plan and told us that we could go either right or left because the lot location. So we added "driveway on the right hand side if seeing from the curb" as one condition in the purchase agreement.
So the point is, if the driveway location is on the legal paper, you should win; otherwise, tough.
So the point is, if the driveway location is on the legal paper, you should win; otherwise, tough.