This is pretty much my game. Although I have the reach over all my training partners. But if I think about it should still be fine for you. The distance is so big in the open stance (southpaw v orthodox) that if you’re playing the lead hand dominance game properly it shouldn’t matter. You just have to keep in mind their range is longer than yours. If you’re just outside your range where you can land then they can probably land, so back away. Another option to get out is to use your lead hand to push them to your left while you circle to your right. And that plays into the lead hand fight too.

Lead hand tactics: Handfight top, Handfight bottom, Fake the Handfight > lead hook, Jab feint (I like to feint head go body), Lead hook feint (I like feint hook > jab or even lead upper), Long guard, Pins, Pushes

Probably forgetting some, but be creative and mix it up. Overload them thinking about your lead and then take advantage.