Came he to say the exact same. I did a lot of research back in the day and settled on a 64' but iirc the best options were around the 1960 - 1968 but I couldn't tell you the reasons. I spent a lot of time on the samba (as the rest) but I also pretty much memorized the book Baja Bugs and Buggies. https://www.amazon.com/Baja-Bugs-Buggies-VW-based-off-road/dp/0895861860
I wanted to build a baja bug with my dad for my first car, but they're just too damn slow to be a decent daily. He had this book that explained pretty much everything. It's probably cheaper than building a hot rod, since this will basically be a beater and all you have to do initially is adjust the ride height, cut down the fenders a bit, and get some off road tires. Then just go crazy from there.
In my Build Diary I posted a lot of weld photos, I have been documenting my welding skill from No Skill to today (a little skill).
I suggest you read the "Buggy Bible" http://www.amazon.com/Baja-Bugs-Buggies-VW-based-off-road/dp/0895861860