Freeway, how much money you got? Can it be done, of course. But, at the same time, it is going to be a very expensive mod if you want something that you don't have to insert a key into the steering column. You are at a minimum looking at a computer module, a complete wiring harness, a solenoid to override the steering lock mechanism. Not to mention you will have an additional key fob on your key chain (1 for the doors, 1 to start the vehicle). If you get one that does the doors and everything, then you are looking at even more. To take a wild stab in the dark for what this will cost you, I am guestimating about $3000.
I will put it another way, I have contemplated it and based on the wiring that would need to be done and whatnot, I called it out of my league. What does that tell you?