Need help with 2 issues but same place!

Your springs may be reuseable. I took mine to the springshop and had them re-arched and added a second mainleaf from eye to eye. Cost me $100C....... a very long time ago. Yeah those springs have been on just a few cars; one with custom slapper bars. Those bars weren't cheap either,lol. Purchased those in 1971, for my 70Swinger 340-4speed, when I realized the chassis couldn't handle even the lil 340. So while all my hi-school buddies were hopping up theirchit, outclassing my 340, I just kept laying a licking on them with my stock engine.