1. Attack Rear sets
If you’re willing to work with these things they’re great! They have TONS of adjustment compared to other brands. Mine came with adjustable length shift and brake pedals (nice bonus!) The pegs are on the short which is great for cornering clearance and less likely to catch your shin while moving the bike about.
You will need to get a custom rear brake line made. Ideally 5” longer than stock with a 45° angle down fitting at the master cylinder.
They only came with a long shift rod for standard shifting. GP requires a shorter rod.