360 to stroker combo ...question on what kit

May go with a stroker kit for the my 360 magnum. Was wondering if anyone on here has bought a Scat stroker kit off eBay sold by Cleggs they sell a balanced kit for 1232.00 or unbalanced for like 1150.00. Any thought are helpful and I'm not building a all out drag engine but it will see some drag racing. It's a cast crank and I'm using stock magnum heads so around 425 no and 450 to 475tq is about my linuts and don't plan on spinning it over say 6200rpm