i think that would do just fine for minecraft
as you said it already minecraft is more on cpu then gpu
so a good cpu is crucial and AMD is good for gaming these days.
myself i'm never a big fan of integrated gpu's and i'll always put in an extra gpu but this is just because i play a bigger variation of games.
just do yourself a favor for the future alsways make sure your psu is able to handle it if you add a gpu
and your case has the room for it.
Could save you some euro's in the future if you change interest from minecraft to who knows what game