I recently installed a stainless steel complete line kit on my truck from restoration parts unlimited (branded as “the right stuff detailing”) and have been pretty pleased. Flares were good out of the box, no leaks or fit issues. Material seemed solid. I have a R10 but surely they make kits for your truck, worth a look a least. Price wasn’t too bad either when I picked mine up. Nothing wrong with making your own lines either, but it does require some patience. As long as you’ve got plenty of that it’s smooth sailing