Help me with my decision! 77 vs 78

[chota]

My first post
I have been looking into getting an older truck for quite some time now. Originally I was looking into getting a Ford but after stumbling upon this website and seeing what some of y'all done with your trucks, I am convinced that Chevy is the way to go. The problem is, I have narrowed down my choices between two trucks a 77 Chevy 1500 vs. a 1978 Chevy C10 and I cant make up my mind because generally speaking I have very little knowledge of cars.

Here are the links:

The 77 1500

http://toronto.kijiji.ca/c-cars-vehi...AdIdZ515829702

I got the seller down to 4k... not sure exactly the condition underneath the hood. Only concern is if a novice like myself will be able to work on it and rely on it to use as a daily driver.

The 78 C10

http://toronto.kijiji.ca/c-cars-vehi...AdIdZ507622383

Car looks immaculate but the price is reaching my maximum price range. Seller says over 15k$ worth of goodies invested into the truck. So is it a bargain? Maybe saving money in the long run?

Which would you choose and why?

I also found this guy

http://belleville.kijiji.ca/c-cars-v...AdIdZ499858555

I was thinking I could pick this truck up if I picked up the cheaper 77 option instead of $8k 78 c10 but... I dont see any benefit of having 2 77's. Maybe interchange the parts?