Well if you weren’t a fabricator before, you are now. I’m finding the scrap bins at metal yards a good place to get “stuff”. I just grab whatever looks useful. Scrap steel has been my source of practice pieces while I’ve been learning to weld. I might be tempted to run holes through your angle for a positive home for your spring. Maybe it doesn’t matter if there is always tension on them, but if you’re going to take another run at it….