I thought I'd post the sites that I find most helpful in building my ride. Some might not like these sites or instructors but I find them great. They don't just tell me what can be done but how to do it:
Rat Rod Bob - he makes it all look so simple and he is so down to earth.
Make it Custom - with Carl Fisher - It might be Kustom with a K, I forget. Super nice east coaster I think.
Garage Fab with a guy going by the name ManKandy. I love the way he teaches.
Greasy Boy Kustoms really knows flatheads
All these guys really know their stuff (I thinl) and go into enough detail so I understand the why and not just the how of things. All these guys are on YouTube.