Add Product Type to Zen Cart

I have installed Zen Cart on my website and I am making modifications to it. I have figured out a lot on my own, but I am having a few difficulties creating a specific product type and integrating it into the cart. I have quite a bit of it done, and even semi-working, but I'm getting frustrated. I know that someone who knew what they were doing could do this in an hour. Also, I need this ASAP! What I want is someone who KNOWS how to do this, and who is willing to help/guide/tutor me, and give me some specific coding help when needed. I need someone in the US so I can call you on the phone, as I have unlimited ld service. Please do NOT bid on this project if you are not thoroughly familiar with making a new product type in the Zen cart. If you don't know what I'm talking about you can't help me. I do not need my website designed, nor the cart installed, nor any custom scripting done. I just need exactly what I'm asking for. Please also do not respond with canned ad copy about you, your company, or your general expertise. If you can't respond directly to what I am asking for then we will not work well together, and I will not even consider your bid. It is possible this could lead to some more long term association for the right person. I have several other projects planned. Thanks, Kat