Ben should be able to give you a ballpark and is legit. Dan, not me, at integrity-traders.com is also good. You might also try multicharts, not .net but has a free trial and easy language convertor.
sorry, i didnt managed to finish the coding becoz ninjatrader platform is lacking of a debugging tool, which the workaround is very tedious. i guess some traders here will help too if they are specialised in NT7.