Local Harvest Gardening

My original garden plan had me putting a peach tree under an overhang of my house.
I've decided to purchase a greenhouse, but it's only 2 meters tall.. will that be enough room for a dwarf peach tree?..

The rest of the greenhouse will be tomatoes, cucumber, peppers and an eggplant.
Overall the width and length would be 6 by 8 feet

There are some genetic dwarfs that will stay small like a shrub, so that would work. I suspect your plan A will yield better results because they are very happy outdoors where humidity tends to be lower. (as long as it is under the eaves and South or West facing.

Thanks Jack!
Plan A will be where it goes then.