Tilting your pot for light penetration

Can always let it grow into itself. adding the wedge under the pot is going to create a path when watering and its might make dry spots in the parts that's wedged up. and that is not ideal. I would almost relax the LST on the other part so its all even. and even if its not. it will grow just fine. anything under 6" height difference is a ok.

You could, but it's also likely to affect how your pot drains when watering. It will funnel water to the low side and the higher side may not get wet at all, at least on the bottom.

I would let the plants do their thing, having the pot crooked would make drainage of water act odd. Or maybe just use some training or a net to even out the canopy. Good luck!

I don't see why not but even canopy is best achieved with training the branches without breaking them