Looks like you will have a lot of wasted speed that will have to be braked hard before the second lift. Are you sure that two lifts would really be necessary? If you have loads of speed there before that 2nd lift, why not run it out with a few more hills, a helix maybe, and hit the final brakes back to the station? This way, you can get the experience on designing and get some comments that might help you out? To me, it just seems like a waste to have a second lift in a coaster that looks this short. I don't want to discourage you at all my friend, just my advice from the peanut gallery.

Sometimes the best thing to say is nothing at all.