How to prune this mustang chum

Hello people. I planted this mustang chum this March and took a shot if it as you see. How would you prune it and would you shoot for open center, central leader, modified central leader, or none of the above??? I’ve only seen one photo of an adult mustang which looks like a wobbly crooked tree. I also read it grows like a bush. For reference, I’ve numbered each branch. Help!

If you want it to be treelike, I’d cut off everything but #4 and stake that up.

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I read it’s natural diameter is 8’. If it’s your only plum and you wish to add other varieties later, I would keep all limbs and only prune when necessary to create the shape you desire. Cherry plums can accept many other Asian or European plum varieties as well as most found here in the US. So you could easily graft it into a multiple variety tree or bush as you wish.

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