Haha, honestly, I don't really have that many tool. Just a few my dad gave me. I don't even have a welder anymore. I have to go to my buddies house just to weld things up. Truth is, I just make it up as I go along. Sometimes it works, most of the times I have to re-do it. But it's still fun.
Same here. I have to visually assemble it before any actual assembly. If I need to use big boy tools, I'm blessed with good friends and neighbors!