Panels coming along nice,Hey Fakky here is a website that helped me out a lot when I was practicing to get ready to weld in my Camaro clip, covers all types of welding.
http://www.weldingtipsandtricks.com/
For spring perches look at local trailer supply store , I got my u-bolts pads and perches for like $25 picked up.
https://www.southwestwheel.com/c-38-u-bolt-kits.aspx
https://www.southwestwheel.com/c-811...xle-seats.aspx