Again I'll just go back to the start, why?
If they can jump up and get their hand over the bar then they are tall enough to play in goal.
I have never been chipped as a goalkeeper so IMO you'd be mainly wasting your time and chance created by a teammate.
However I wasn't great on crosses, had to punch most of the time and I used to stay on my line for corners with the instruction to the defenders to head it clear, I was a good shot-stopper, you play to your strengths, no point me coming for a cross at the end of the day, I had a better chance of saving the header.
Shay Given was 5ft 10"