Quickest solution but most expensive would be . . . throwing $6K at a Stillen/AP Racing RadiCAL or some other similar system
but how bout these? Z1 2-pc rotors. They are internally vented in a manner i don't think the DBA ones are.
https://www.z1motorsports.com/brakes...rs-p-7025.html
As for the oil temps . . . time for a 34 row?