Installing a painless wiring system

I'm curious to about wiring kits too mine is out of control.its a 73 duster looks like a duster went in and twisted around in there lol.the ez kit is less then 200 is it worth a try?sorry for asking in your post.
Probably just as good as any other, unless u can buy one mopar specific. If so I`d do that if $ isn`t a problem.