First of all, look at the "Migration into LITE-C" in manual. And start conversion step-by-step (function by function). If you'll have some problems, don't give up, try more and more, if you can't handle it at all, post here some part of it, and we'll help. I changed to LITE-C myself a long time ago and it very easy, 1000 times easier than you think dude. Just give it a try.