Minibel tomatoes - how much?

[Squash64]

Minibel tomatoes are doing really well.  The plants are small but have lots of tomatoes which are about the size of Sungold.

I planted extra so I would have some to sell at the Summer Fayre on August 14th.  They should be the same as these plants in the photo by then.  Any idea how much I could sell them for?

[attachment=1]

[Squash64]