First off . . . that's in beautiful shape ! Maybe the best I've seen in a long time , congrats .
Forget the Tom Daniel kit , it's 1/24th ( actually I think it's bigger than that ) and has NO stock parts in it . Depending on what your plans are the AMT '59 El Camino will be the easiest , and if you want to get more detailed (and more work) the Revell "60 Impala has the best parts for detailing . Maybe parts from both kits will give you the better results .