What lowering should I consider going from 22 PP1 Wheels to Project 6GR 20x10 20x11

[BLACKMACH1NE]

275/35/20 35 offset 305/30/20 50 offset (might go 35 profile). Can I get away with just springs? Please let me know your thoughts. If youve done a similar set up Id appreciate any advise/pics you may have. Thank you.

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