Yeah I get what you mean about using every graft that's available. It's a catch 22 because as you said a lot of docs won't want to operate plus it's very expensive because you need to do a few surgeries.
Actually, have you ever reached out to Hattingen clinic? I spoke with them a while ago and they seemed pretty open to removing incorrectly angled grafts and repositioning, as I also need this done.
I actually ended up going with Dr Pinto and my surgery is next year but it would be worth having a consultation with Hattingen clinic.