Eletrical replacement?

ok i have a 89 ford bronco thats wiring is a little faulty to say the least, with that said its had 21 years of retards splicing in and leaving bare wires here and there, so my question is does anyone know of a company that makes a replacement wiring kit for my bronco i need it be as close to plug and play as possible i have plenty of auto experience but eletrical can be a lil crazy at times so please any help would be great, i went on painlesswiring.com or w/e and they dont have one for my truck only early model broncos. thanks to all that answer