Good luck. Do what you can do to make it work for both of you.
I'm not familiar with custom insoles. I've had leather like orthotic (sp?) inserts. The ones made from a plaster cast. 3-400 seems to be the price.
I need to get new shoes, my left heel hurt so I can not walk on my treadmill. I am so flat-footed, it is like a rocking chair under my feet. Hurts after just a little walking.