NevadaLover
Forking Icehole
Should have ordered personal plates while at the DMV: $$$-PIT
You are looking at this wrong, sure you have spent time and money fixing problem so far, (and will continue to do so believe me) but to replace this burb with a new or newer version will cost ALOT more than you have spent and will spend.
Not sure if the cooler is needed or not.
The lower line but is loose at the radiator, frozen to the line itself. Tried working it back and forth, tightening and loosening. Even put vise grips on the line itself. Nada. These lines are disgusting and caked in oil and dirty. You can't even see the ribbing on the protective hose cover. Looks like they have been leaking a very very long time. I'm not sure where the leak is, but it appears to be where the hose and line meet.
These coolers are absolutely needed, especially for the transmission as it helps warm it faster in cold weather, so I would definitely get new lines and hook them up.
and since you are replacing the radiator anyway just replace the lines with it!
here's how the lines come off the fittings, there should be a plastic cover over them that will slide off and down the line exposing these clips.
Here's how to get the clip back into the fitting, when the clip is in place put some di-electric grease or motor oil on the line then push the line in until you feel the clip snap over them, then try to pull them back out, if you have them connected correctly they will not come back out.