Any legal way to get OS X 10.7?

[Ice Cold]

I'm trying to wipe my old MacBook before I send it to my sister and I lost my boot disks when I moved. I'd like to get official install from Apple since my old laptop is too flabby for the current os any way that's possible brehs ?

 

[Optimus Prime]

I'm trying to wipe my old MacBook before I send it to my sister and I lost my boot disks when I moved. I'd like to get official install from Apple since my old laptop is too flabby for the current os any way that's possible brehs ?

Its on Apple.com for $20

OS X Lion (10.7)