There are dudes with brand new trucks doing lifts every day. Pass on the old springs. Just take a look on Craigslist or your local Toyota group. Chance are you can get some for free.
Local guy is giving away his suspension parts with 7K on them. I picked up the UCAs. I figure it's easier to swap the whole thing than to try and replace the joints.
I don't think he'll ship but if I can get them for free I'll send them your way for shipping cost.