Pinto Car Club of America

I was just wondering how hard it will be to install a Ralley Package in my 78 Squire Wagon if i win one on E-bay or can locate one elsewhere. I am talking the gages that go where the heater controls are now along with the tach, ect. I also have a pony steering wheel i may wide up with and would like to switch a few things out. I will still be "stock" with these options at most shows so...
Thanks for your help