JP,
First of all welcome to the OCF Forum.
You have already discovered how valuable it is for getting helpful advice from those who have experienced OC as either patients and carers.
As you can see by my signature I had the flap from my wrist and while it is a crater that I refer to as a shark bite if asked, it does not bother me anymore when people see it and look puzzled.
Just one thing re taking the flap from the wrist is that there is little hair and even though I had some growing initially I think with time it rubs off. Will look at my mouth again in the mirror shortly

Someone mentioned the thigh and I see yours will be above the elbow. Suspect it will be from the inside also which would not be too hairy?
The very very best wishes for the operation on Monday.
Where are you in Australia?
Gabriele