Build it safe
Needs to be merged with Health and safety in the shop or garage
For the benefit of the newbies, or a reminder to the "memory challenged", there are many basic safety issues that should always be observed, whether you build it from the ground up, or finish someone else's project.
These are common things you'll see.
Cotter pins. Ball joints, tie rods, spindle nuts and other key components have drilled threads and castle nuts. ALWAYS use new pins. I've seen nails, tie wire?? Proper cotter pins cost 25 cents, splurge.
Flex fans. If you are going to use them, check them. When they start to crack, toss em. True for any fan actually, but the flex seem more prone.
Brake lines. Unless they are factory, or you did them yourself, check em. Aluminum lines need a double flare. Surprising how many people don't know that. If you don't know how to tell, get someone who does. Especially check any newly installed pieces, like around proportioning valves.
Seat belt anchors. Frame members are best to anchor to, but if it only goes through sheet metal, use at least a 3 inch grade 8 washer or fabricated steel plate. Use grade 8 bolts and nuts. Never use the seat anchors, and don't use them for comparison. You weigh much more than the seat, so the belt anchors must be 4 or 5 times stronger than the seat anchors.
Torque specs. They exist for virtually every bolt. Use 'em. Too light and they may come loose. Too heavy and it may stretch the threads and break later. Very common on over torqued wheel studs.
Axle and wheel bearings. Jack the car up and check each wheel for looseness, clicking noises, binding and grinding. It's amazing what you can't hear with the engine running.
General If you are buying an unfinished project or the vehicle is new to you, check everything designed to control or stop the car.
Enjoy a safe, happy ride.