Matt - thanks for point out that is an AQS engine in the pic Gerry posted.
Now Gerry - I was gonna say something like
"Na-Na-naNa-Na", but I won't do that. I think that would be acting like a kid and having fun, and we just don't do that stuff.
Jeremiah - thanks for posting all those pics. Overall you got a decent looking 149, I think a prime candidate for restoration, unless you're just not into doing that. I see you have the QL hood hinge which is alot better than the original 1x9 style. Also, I agree with Dennis that it really wouldn't take much to repair that fiberglass. I see Wayne thought you were missing the hood support piece but I can see the rubber spacer so that has to be there. You probably just need to raise it up a bit and/or realign the hood. Course none of this will help your fuel line. I guess I have to concede to Dennis and Gerry that the fuel line routing ain't the problem, but I still don't like that big Kohler filter on there. One thing you could do is go out and buy a new piece of rubber fuel line and the brand I recommend is "ARC".
Now, your heat shield is the style used on the 1x2/1x3 series, not sure after that. But as long as it fits and looks like it does, then I wouldn't change it. I see the usual crack where it bolts to one of the head bolts but that's only a problem if you have to remove it. The 2 PTO clutches are both IH as you decided. They may have that slight variation in appearance but doesn't make any difference. The yellow one is missing the triangular spring or springs and I suspect is the one with the broken center button. Good to keep them handy, wouldn't take to much to fix one to usuable condition. Looks like ya got a really nice mowing deck, suspect it's a 44A or 50A that someone added the front wheels and some extra steel support on. And I gotta say I sure like those rear ag tires, they look tuff.
Bill J - that plastic bushing has a lip on the top so it will only push in so far. If that's your only problem and you really don't want to remove the steering wheel, then I'd just work at pushing it back in to it's correct place, and then see if you can drill a small hole and put a teeny screw thru the column into the plastic bushing to hold it in place. I'd probably do it towards the back so you really don't see it unless you bend down and look on the underside of the steering wheel. I have to say all this really quietly so the IH police don't pic up on the message. Now, the other thing you can also do is pop the steering wheel off, remove the plastic bushing then take a BFH and just tap really lightly around the top of the column tube. This will put just a little roll to the top edge so you can tap the plastic bushing into place. I actually prefer this over the small screw suggestion but it does require removing the steering wheel. And by the way, I only ever used the bolt and 2 nut method mentioned in the FAQ to remove the wheel - I think if you click thru it far enough you might even see my name associated with it.