wiring diagram for a ford 420 backhoe?

I have looked and looked for a wiring diagram for my backhoe need it to rewire lights starter switch after a bout with a pack rat . It ate my wires behind the tachometer and light switch and starter switch any one with a diagram and you could email a copy to me at rockinghpaints@yahoo.com . We live in central Kansas and the backhoe was in super shape low hrs on it was used to dig graves the city got a new one got all the extra parts filters but they had no book on it. The pack rat even ate my tachometer cable was able to order a new one. it is a 3 cyl Gas no leaks all the hydraulics are like new. New tires I do need to recover the seat I got it for $2,500. I would also like to know if that was to much for a Industrial ford 420 backhoe with 2 buckets. Thanks Chris in kansas sorry if long winded it is late and have been looking for a diagram for the last 2 weeks

Chris Hamilton
February 2008