I asked a similar question a while ago Nick.
I ended up getting a Umarex Colt 1911 CQBP. i'm really pleased with it. (branded Umarex but KWC made)
Mine is in the FDE colourway and the warning writing is a lot more subdued than in the black.
I've also owned a couple of the PPK 's over the years. Never had any kind of issue with them only the top of the stick mags that tend to come apart after some sustained use. Easily and cheaply replaced though when they do give in.
Oddly enough I have another PPK landing today.
If you find your way up here at any point, you're welcome to try all mine. I have a few pellet firers too and an uzi
I also have a rather nice Magic9 custom built 1911.
Next ones on my list will probably be
possibly the CQBP in black, I like the FDE one that much (sportsman have them at a good price)
an ASG cz75 (supposed to be good quality and I used to shoot the 9mm one)
Lastly the Umarex (again not sure Umarex made) Beretta m92 A1 - Very good replica and again well put together according to the reviews but not cheap.
There are also a few pellet blowback pistols so don't rule them out.
Sig 226
ASG PZ09 duty
The infamous Umarex Desert Eagle - Literally just sold one, being a man of your huge stature it would have really suited you