i'm heavily leaning towards purchasing a lifetime subscription but I have a disabilty in which I have full use of one hand and only partial use of another, my question is do you guys think I'll be able to play this game/
You can pretty much play exclusively with one hand. Basic mouse clicking does help with response time, but the keyboard has a lot of functionality too it as well and key binding. Of course, the joke is you only really need spacebar, lol.
You can fly your ship and move your ground character by holding down the right and left mouse button, so yes you'll be able to play. Other then that, you can map fire all weapons to the space bar and mash away.