I was searching for the same answers when I was buying Wildcat MK3 just a few months back.
I'm 100% lefty, left handed and left eye dominant so I have to be careful not to make a mistake when buying a rifle. I always had standard gunstock rifles which are mostly ambidextrous these days so that wasn't a problem but I wanted a bullpup this time.
Wildcat MK3 and Maverick share the same action so it doesn't matter much which one you choose. I've opted for the Wildcat, I just like the looks better.
Found this thread regarding Maverick by Spray1Mark
LEFT HANDED FX MAVERICK - Airgun Nation On that idea I've designed and 3D printed few variants of the cheek piece (blue ones were test pieces)
If anyone's interested I'll be uploading both designs (one piece and two piece) to thingi in a few days, just want to refine the shape a bit (make it thinner on the right side)
One thing is a must, if you want to use Wildcat MK3 or a Maverick as a lefty. you need to buy FX mini magazine and load it from the top, it really works flawlessly.
You can't use the magazine you get with the rifle comfortably in any configuration, at least I can't, your mileage may vary a bit but not much with the size of a new magazines that are shipped with the rifle.