door and ignition cylinders?

[Mobius]

I just got a 77 C20, and I only received the ignition key. I need to purchase new door locks and I was hoping there is a set available that would include an ignition cylinder that uses the same key, instead of having the traditional two keys? Can anyone point me in the right direction? If I'm stuck with two keys, who sells a quality product?

 

[Mobius]

And after some more creative googling, I found and ordered this: http://www.classicindustries.com/product/1977/truck/parts/tk106.html

 

[CSFJ]

That's kinda neat. I never even thought of looking to see if these trucks could be converted to one key set-ups. Which is funny because when I worked at the Honda dealer, I picked up a used civic that someone had switched out the ignition switch on. Drove me nuts having two keys until I made it a point to take my other locks out and rekey the tumblers. But never thought about doing that to the trucks. Talk about set in your ways. Lol.