I use an SPD cleat and I do a bit of walking and standing. I use mountain bike shoes for my summer riding, but I have the Sidi road winter shoe.

Can I bolt or glue a sole onto this shoe? To create a flat area to stand on and to add a recessed location for the cleat?

I'm asking in this forum because they are road shoes.

I am not concerned about the flex. The most walking I will do is into a store or up to the office.