I would recommend 1 tropf blumat and 1 maxi blumat per pot, the maxi blumats are longer so will start watering when the bottom of the pots dry out.
I would also add 1 extra drip emitter per blumat to cover a bigger area. that would make up to 4 irrigation points per pot and should be sufficient for a 10-gallon pot.
And you would have enough equipment to just transfer over to raised beds without buying new stuff. Even thou I would recommend the BlueSoak for beds.