Okay, so another update. I was able to pull the lifters out and to my surprise there were not any grooves or indentations on the back side, BUT when I pulled the one lifter out there was small pieces of cast metal on it. I could see that the one cam lob was in the up position but the other was not. So I decided to try and turn the crankshaft with a wrench and AGAIN to my surprise, I found that the piston is not moving. The top side of the cam is also not moving. Oh yeah, when I turned the motor on it's back side, I heard something metal in the crankcase make some noise. So, if I am reading this correcly, I likely have a broken connecting rod, a broken camshaft and possibly collapsed lifters. Assuming that I do not need to replace the piston itself, I am looking at about $350 in parts without replacing any gaskets that need replacing from the teardown. This is also assuming that everything with the head/valves is good. I just don't know if this is beyond the point where I should be fixing it. I guess it is more just an issue of my lack of experience with this type of work and thinking that maybe I should try and find a small engine repair person to take on this project?