While my cross dressing days are over, my town has a kinky shop where you can find drag shoes in large size. It may be an option for you depending how big is your city.
However, I did only use gender neutral sneakers, I am way too tall for heels, and even flat girly shoes in large size are out of my budget (Expect we'll above €100)
May be not egg anymore if I can identify it as Dysphoria. And actually pretty privileged to have only a moderate one (what if...). But sometimes, I realize that being married means I'll never transition, and sometimes, when we have a couple argument, cross dressing and even transitionning comes in the list of thing I could do if she kicks me out.
I am lucky, I love my wife, she loves me, she actually wants that I remove body hairs have long hair and earrings, but I know she wants a man, and if a baby comes I'll be even more stuck as a man.
I've considered transition before, haven't done it, no surprise, dysphoria, even light one, doesn't go away, and still consider it. However, at the same time I feel good in my cis het marriage, and I don't want to loose it.