Ofna DM1 Spec Brushless Build

Just looking for an honest veiw on the DM1 would anyone feel that the novak HV pro system would be good enuff for the convertion ? my DM1 will also sport the single speed and i was just thinking would mid 50's be out of reach for the novak system i want the car to be comparible to a DM1 with a 21 ninja , well a tad faster but i dont want the brute torque just the top end i do plan to race and felt the sensored motor make bring some benifits.