Is there a spacer that does this, aka bolt pater adapter.

Also what are the correct offsets for a 18x8/9 staggered setup on a Gen1 Toaster?

Thanks.

 

Yes there is adapters. I would choose any of the JDM brands as they are made of higher quailty.
M2 Spacers
Project Kicks (JDM brand)
GTO (JDM brand)

And what do you mean by correct offset? Or what is the look your trying to achieve with the wheels? People have different definitions for flush.