Hey, chill out bro.. I think the advice you've been given is the right direction. Melyvn's book is very valuable and highly recommended. How was they to know you can't drive 27.5 miles to buy one. Chill...
First off, you have to be willing to be helped, before you can get help. The advice given to you has been for your benefit. If your building your own guitar, you can make the heel any dimension you want to. Now, If your wanting a certain size heel, like a Fender, Gibson, PRS, then we can understand you better. Check out my Making of a Strat pictorial if you want to know the methods for making a Fender style neck. It doesn't give the dimension of the heel though, simply because I didn't show how to make your own templates, which would have taken up a whole tutorial itself. This was built from Strat templates bought from Ron at guitarbuildingtemplates.com. If your serious about building a neck, take the time to build good templates first. I've said it a million times and will say it again to you,,, it's much easier sanding a 1/4" template perfect than it is a 2" piece of hardwood. Hope you find the pictorial of some use to you.
As far as the dimensions goes, and I'm just going to assume you meant a Fender type neck. Here's a link that should help you to make your own using these dimensions.
link 1