[Shotimes] Crank Cancer - Cracked woodruff key, fubar timing sprocket

[rcedelman@comcast.net]

Seems I have the infamous "crank cancer." Couldn't figure it out myself, and partly didn't want to deal with it, but a local mechanic found it. The woodruff key is cracked and the timing sprocket looks just like the pictures on shotimes.com. 

Couple of questions here.
1) Where can I get a new woodruff key and sprocket?
2) The mechanic is saying I need a whole new crank. He says the crank, where the sprocket goes on, is supposed to have a bunch of splines on it and mine are worn off, but I've never seen what he's talking about on a crank in any engine. I'm thinking this part is BS, but I wanted to ask the experts on the list.
3) If the crank really is bad, I'm guessing it'll be a lot cheaper to just drop another engine in there rather than rebuild the one I've got... Anyone have a spare 3.2L they want to get rid of? :)

Thanks,

Rich Edelman