Hey Darron, that sounds like a cool bass actually. I'd actually suggest exactly what you already did, which was to find someone local to help you out. I suspect your teacher has never made an instrument before and probably thinks that it's more precise than it really is. Precision is key, but it's not the end of the world if he buggers a few things up here and there. I'd suggest getting some inexpensive wood and making two of them with him so there is more wiggle room if the first one has problems. Poplar and basswood are both cheap and plentiful, plus they are easy to work with and take finishes easy as well.
To pay someone to make this for you will be expensive, likely more expensive than buying an off the shelf bass, so that's why i'm recommending going with the woodshop teacher idea.
You need to get the neck, pickups and bridge first so that you can use their dimensions to build from. Cutting the body and routing it are the easy parts, it's all the calculating that will be more of a challenge for a newb. I'd suggest picking up a copy of "Make Your Own Electric Guitar" by Melvyn Hiscock, its an invaluable resource and will inspire you to great heights.
One thing to consider is that if you want the jagstang body style with a full scale (34") neck, you'll need to make the body a bit bigger than a guitar jagstang, or you'll end up with bad neckdive. For starters, get a big honkin piece of paper and draw out your bass full scale, this will help sort things out greatly and will eventually become the template when you and your teach start to cut some lumber.
My last advice is to read all the stickies at the top of this forum and ask lots of questions. Keep this thread rolling along as well and as long as you keep posting, we'll keep helping. Good luck, this will be a blast if you stay patient...