LA 360 or Magnum 5.9

So almost positive Im going to go magnum. Can't beat price of complete running 145,000 mile motor from my brother in law for $100. Then I just have to find an intake an oil pan, pump, pick up. Need to find out what cam I can upgrade to with long snout(for mechanical fuel pump) that has some power potential and it's got to be lopey or choppy. Also I have to see which flex plate I need to make it work with my 2800 stall that's currently behind my 318(no weights). I was also told as long as I use the LA front cover the power steering pump and alternator will bolt right up that's on. My. Current 318 LA motor.