Do i need to buy new springs if my Tacoma is leveled and I’m going to be purchasing new shocks?

I have a 2007 Tacoma and am looking to replace my suspension and came across a set of 4 Bilstein 5100 shocks and the 2 front springs and was wondering if I replace my shocks do I need to also replace the springs, or can I leave the stock springs on and only replace the shocks. The truck is leveled 2in and I think I can just replace the shocks but I just wanted conformation.

 

You can reuse your existing 12 year-old springs if you want. If they are sagging or rusted, replacing them with newer springs would be nice, but not a requirement.