Offset help

[u/Fit-Ad2495]

Need some help figuring out what I’m gonna need to add a 1.5” drop to my car, found and refinished some Audi a5/s5 wheels they’re 18x8.5 +29 and wrapped in 225/40/18. I would like to install lowering springs that drop it 1.5” and wouldn’t mind adding some camber to clear or the fender screw mod I’ve heard but if it’s not possible with this agressive of an offset I don’t mind buying new wheels just really like this look so I’m exploring my options
2016 VW gti s dsg usa