Just remember if you want dialogue on your steadicam you'll need dual system audio, or the smallest wireless receiver you can get. You can't hang cables off of a compact steadicam. And 35mm adapter is completely out of that shot as well. You can get a long way with a good set of sticks and careful hand held. If you are not going to get a professional sound person, just get a buddy on the boom, get the best mic you can afford. You'd blow most of your budget on a senheiser 416 and rycote wind screen, but the sound would be worth it and you'll still have it long after your camera is dead. The same is true for a good tripod and light kit. You may have to build up gradually but most of these items will last your entire career.