El Dorado Peach - Miniature

can this (or other peach varieties) be espaliered in a stepover way? I want to plant it along a low stone wall for reflected heat and am looking at the very dwarf rootstock varieties to keep the height low and manageable. [I haven't built the wall yet, but am looking at about designing a 3' wall.]

Due to their tip-bearing fruiting habit, peaches do not do well in an espalier form.

Is the El Dorado peach miniature sold in pot or bareroot?

These are sold as bareroot plants and ship in the spring.

how far apart do you plant this tree?

As close as 6 feet together!

If my area receives 1000+ chill hours can i still grow this variety? Or would it come out of dormancy too early?

Chill hours are just one factor that determines when a plant comes out of dormancy. This tree will be fine.

will it fruit the same year planted if planted late winter?

These trees will need a couple years to establish before producing fruit.