There will be no issues at all having stainless braided air lines already installed. The PTC-to-AN adapter fittings that will have come with the stainless lines, like the Air Lift Upgrade Kit for LoadLifter 5000 and LoadLifter 5000 Ultimate # AL52300, are actually specifically designed for this purpose. This fitting will then connect to the nylon air lines that go to the compressor and you will be good to go.
I attached an image from the instructions that will break this down as well. view full answer...