Update: So I recently bought a backwards compatible ps3. But it wasn't reading ps2 games so I asked reddit for help and most of the comments said “Replace the Laser Lens,” did
3 Ways to Play PS2 Games on a PS3 - wikiHow
3 Ways to Play PS2 Games on a PS3 - wikiHow
A Late Adopter's Guide To The PlayStation 3 - Game Informer
Just a backwards compatible PS3 I got for... £30! : r/PS3
A Late Adopter's Guide To The PlayStation 3 - Game Informer
Decided to get a backwards compatible PS3. Put together a collection of my favorite PS2/PS3 games and able to play Guitar Hero again! : r/PS3
Building the Ultimate PS3 (Backwards Compatible) - De-lid CPU/GPU, 19-Blade Fan, Fan Mod, Case Mod. - YouTube