I'm going to be building a storage rack to replace my spare tire and I'm wanting to build it to fit whatever I am going to put in it so there's no rattling of stuff stored in it. The main thing that I'll be putting in it is a compressor. However, I am trying to decide between a separate compressor and jumper box or cables, or a combined compressor/jumper box. Honestly, I'm leaning toward the separate units because that way I can get a compressor with a longer air hose. Opinions?