Axle placement. Need Advice

Ok Folks, I am about to start on a tiny house toy hauler build and I need some advice from some of you trailer gurus.
My trailer is a single axle 10'. It will have a 3' overhang on the front for a loft. The loft will be about 3 1/2 ft tall. So it will be 10 ft. + 3' loft overhang.
I was wanting to put a 3 ft porch on the back also. The 3' overhanging loft will weigh less then the rear porch. I am loading a bike and the weight will be mostly towards the front during towing.
Do you think I will have to move the axle for the factory position?
My trailer is a single axle 10'. It will have a 3' overhang on the front for a loft. The loft will be about 3 1/2 ft tall. So it will be 10 ft. + 3' loft overhang.
I was wanting to put a 3 ft porch on the back also. The 3' overhanging loft will weigh less then the rear porch. I am loading a bike and the weight will be mostly towards the front during towing.
Do you think I will have to move the axle for the factory position?