Kennebec-Kid

Designing a two story garage workshop with stepped, stem wall foundation, walls of varying heights and gable roof with two different slopes. Doesn't seem like this should be very difficult but I cant locate / figure out how to get it done. I can draw it manually no problem, and can work in other "non-architectural" softare.....but want to learn to use CA and this seemed like a good place to start. Need footer at 4 feet below grade. stem wall 1 foot above grade in front, 6 foot above in back, and stepped foundation on sides. Walls are taller in back to accomodate 10 pitch in front 6 pitch in back... Would like to find someone to get me going and then to use for help as I move forward. I assume your time is valuable so willing to pay well for good services. Thanks