As Vivek has mentioned, there are quite a few plant-related CRISPR-Cas9 vectors deposited at Addgene, and most of them have proven to work in plants.
I think the most important thing to worry about is the 'essential components' (the "insert", to be cloned into the backbone of a binary vector), which you need to design to guide the Cas9 nuclease to the target site for inducing DSBs. As for the binary backbone, in principle, any binary vector (backbones) which have been successfully used for potato (or other plant) transformation should be ok to be used for cloning-in your essential components for Agrobacterium-mediated genetic transformation.
So, you can just go to Addgene and select an existing CRISPR-Cas9 binary vector, cut out their 'essential-components' insert and clone-in your essential-components insert, then you are in business.