you know, all you need now is igbt driver board, a vla500, a 1200amp igbt and a few caps and your good to go with a low price 500 amp controller

, minus all the safety features but a workable controller,
anyhoo, it's a lot of fun just starting out in electronics everything is so logical and when the light clicks and just a idea can become reality you'll feel like a new father everytime a new idea come to life.