Or get three 22s (a great one for the centre screen and two cheap ones for the sides). My 22s give me about 160 degrees FOV and don't take up the entire room. With enormous screens, as has been said, you'd just end up having to move them further away anyway.
I've always thought FFB wheels need a second set of servos which can (slightly) move the entire steering column about, separately from the torque forces on the wheel. As Dennis says, a lot of what you feel isn't torque from the wheels, but the entire car moving and vibrating under you.
How much of that you do have to raise yourself (over the course of the year I mean), and how much is made back from things like sponsorship or winnings?