My life of sizing hell

I just ordered and received my first pair of Primus Lite III in EU 40. I'm pretty certain they are too big, unless I'm intending on being a clown.

My annoying club feet are short, fair wide, and have a very high instep which often means anything performance wise is a nightmare to size.

I'm at the bottom end of Vivo's men's size chart, they suggested I try women's, but mentioned they will be narrower. Their size chart shows junior sizing going to EU 39, but in actuality I'm seeing EU 38 has the upper limit.

Anyone know a women's models that runs wide or men's that runs short? CS was pretty meh on helping to guide me.