Did anyone suggest the Beretta 92/Taurus 92?
Fairly large guns, though I'm not entirely sure if the grip itself will be large enough. Like the CZ and 1911, you can buy aftermarket grip panels so maybe thicker set of those may help.
And, they're in 9mm, so it keeps the ammo budget down, which I know is important to you(same here!).
The CZs are nice too though. I know the DA trigger reach on those is typically too far for me, so that could be helpful to him, though IIRC the reach is shorter for SA shots, so it might not really be much benefit.