I have been working on my 71B now for just over two years. This website has been my number one source of information. Everyone on here has been a great source of information and motivation. Everytime I get on this site, it motivates me further to get going on the project.
I started my restoration, or I should really say reconditioning of my 71B which I have had for 30 plus years by getting the engine unseized. After that I needed to rebuild the SU carbs, replace all fluids, clean gas tank, etc. before I could turn her over and hear the engine run again after 14 years. Since that time, I have gone through each system and rebuilt it, or reconditioned it. Suspension, Brakes, Rack, Rear end, etc. I would suggest you just pick a part of the vehicle and start. Some people like to start with the simple stuff, some like to take on the hard stuff first. The reason I started with the mechanical part first, is so I could drive the car while I restore the exterior and interior. Also, I feel the cosmetic restoration of the vehicle will be the most expensive part of the project overall, therefore I decided to do the mechanicals first to make sure I had a viable machine worth cosmetically restoring. I am just now at the point of finishing up the mechanical resurection of my B. I hope to have it on the road this summer.
Good luck, and by all means have fun!