Wiring harness suppliers.

[37 Coupe]

I am going to replace every strand of wire on the '31 this winter.Some of it is original but most is spliced together plastic insulation,basically just junk. In other cars and projects over the years I have gone to what I believe is the best Rhode Island and Naragansett wiring and also a great supplier from Virginia Tyree Harris.My question is this really necessary as there really does seemed to be a lot to it and the vendors seemed to have it all covered.?