Alan,
Sorry to hear about your hold up on your build and I hope CPP makes it right for you. When I removed some leaf springs from the rear of my truck I coudn't find the right size u-bolts I needed till someone suggest this little shop in town. Check around and see if you guys might have someone like this. if not maybe these folks could help you out, here is a link to their web site.
http://www.custom-springs.com/ I hope this helps you out. good luck. David