Here's my thoughts.
I've always advised new left handed players (any instrument) to try the standard way first and only go the whole lefty thing if plan "a" REALLY doesn't work for them. But you're different because you already play lefty guitar and your hands/brain will be tuned to fretting with the right and picking with the left. So I reckon you're going to have to go the left handed steel guitar route or you'll be struggling with two opposing disciplines at the same time.
The Maverick is not a good buy, as you guessed. There were some guitars with that name that were ok (maple, separate neck) but the vinyl covered ones are very restricted. Fender put the same guitar out with their badge on and they are true beginners guitars that you dump for a more useful one sooner or later. Without a separate neck, they don't look right either. Check out photos on line and you'll see what pro guitars look like and what I mean.
GFI guitars are good and their student models are ok at the right price. ZB made a decent student model too, ages ago, which would be much better than that Maverick. Second hand guitars will be rare but probably worth seeking. New leftys cost more but are harder to sell, which might be to your advantage as a used-guitar buyer?
Keep in touch with forum and you will get sound advice - of course not all of us think the same way, but you can judge for yourself (check the members' past posts) and figure out a consensus from the different views expressed.
You might as well go for 3 pedals and 4 knee-levers from the start if possible. You don't have to use them all to begin with. Guitars with only 2 KLs may, or may not, have the same functions as the respective 2 out of a set-up of 4 and you could get stuck with a weird co-pedent after learning on an oddball setup.
I know one can do a lot with less (particularly with experience), but you will struggle to get tutor material using fewer than 3 KLs: and a beginner needs all the help he can get.