As Bartamos has said some of the parts may be hard to find or on backorder. I had ordered a CPP series 400 steering box in April and as of this week still had no updated shipping status. The reason I chose to use the series 400 steering gear is that it bolts in the original location and can be used with the factory steering column.
I spoke with one of the Tech Reps at CPP and he advised me to look elsewhere as I my be able to find someone with the part in stock. I did finally locate a vendor who had the steering gear in stock, H&H Classic Parts in Bentonville, AR. They were very helpful and great to work with.
https://hhclassic.com/
