I am unfamiliar with the Clayton LA kit. We built our own. In hindsight, I would have been better off with an off the shelf kit. I think you are taking the right path.
The Deaver Springs were custom made and not off the shelf. They required 2 trips to Deaver: First to measure up, second to get them corrected for load as they lost my weight information and made them for a stock truck. I would think if you look around in your area, there might be a spring company that can make what you need without having top ship all the way from CA.
I have read through but the old pics of your long arms are no longer up.
I have a good idea of what i want after reading through your build and many others. I think the clayton long arm kit (maybe a modified version) is what i am going to end up with in the front and deaver springs in the back.
I am no longer local moved back to Florida
