Get a pin you like and go for it. I didn't learn to solder until I starting repairing my own games when I can. You'll be fine. You'll find repairs and fixing a non-working game can be more fun than playing.

Forgot to mention anything about "the book". The 3rd edition of Pin Repair. I think I have the 2nd edition. It's a pretty good starting point for a new owner. Esp. for older games. Still leaves a lot to be desired. I'd have to recommend an early Bally SS for a 1st game. Of course, I am biased towards those. Once you fix all the "glitches" in a game they hold up well in a home. Of course, you will have normal maintenance too. When it does need to be fixed, give it a shot. I'm not happy when a game is broken, but I feel great when I fix her myself. Curious on what you end up with. Keep us posted and good luck!