I run +25mm Rota RBs with a 195 /45 series with stock 510 struts with a coil over and perch welded at the stock height(so dont hit top of tire,perch and spring)) using a 7 inch Eibach spring
some 205s up front might hit depending on brand as not all 205s are the same 205 in back is fine. would go 195s up front myself
maybe a +20 would be better.
saw the brakes you got there but that dont look stock 510 to me? looks 280zz (not stock 510)