Congrats! I remember the trepidation I used to feel before tech inspections on my 914 and they were often telling me I needed to tighten a front wheel bearing also... (not always did I really have to)
I was always more worried about too many oil leaks...
On that rear brake light, it might be a ground issue (very common), and not the bulb. Check to see if the rest of the lights glow when you put on the brake light. If so, the current is finding its way through the other bulbs to ground.
Also, make sure that someone (PO) didn't jam that 1157 bulb into the socket the wrong way (the keepers are keyed to only twist in one way).
You'll have a great time. The Esses are great in a 914 and when you get turn 5 right, you'll rocket out of there faster than you think a 914 could go and have to really get on the brakes for the left hander into the laces.
Also, turn 10 is a MUCH faster turn than you might think. I ended up not touching the brakes between 9 (off camber) and 10 (NASCAR) but do whatever your instructor tells you.
Great fun in a 914!