Try to get the whole car,the more you can use the better.
I used motor ,trans,radiator,ac compressor etc,in my 53.
I bought a wiring harness from The Detail Zone.
You can use the lincoln harness if you have the patience.
I am planning to do the same thing to my 60 crew cab.
I have the 04 front end ,and I am looking for a wrecked 1999-2004 Crown Vic donor.