Hi & welcome,
1. What are some aids I can use to get him forward without scaring him too much? (I've never used spurs before because I've only ridden hot horses...If you recommend them, do you have any tips for using them?)
You shouldn't be scaring him with any of your 'aids' at all, not just not too much. If that's the case, sounds like you should take everything back to the very basics. If you are new to the horse & especially if he's nervy(could also be that his 'lack of forwardness' is due to fear too) & you're not experienced with training, I'd be working on building your relationship on the ground first, earning his trust & respect.
I wouldn't tend to use spurs, but if you do, get him used to the feel of them & *responding without reacting* to them on the ground first. Whatever aids you use, you need to be consistent & effective - make things as clear & easy for him to get right as possible, 'ask' with a little pressure, then build it(not past discomfort) if he doesn't respond, and keep it up until you get something. The instant you get it - no matter how small his 'try' to begin with, negatively reinforce it by releasing the pressure.
2. What are some good ways to prevent spooks?
Gain his trust & respect so he is confident to take your lead. Lots of experience with different things & places.
3. How can I build his confidence?
4. How can I get him to pick up his canter briskly?
See 1. I'd be getting him willingly responsive at the walk & trot first before starting with canter.
5. How should I punish/correct him when he does spook?
You shouldn't. Do you think it would be fair & help you get over your fears if someone punished you every time you were frightened? Don't react or make a big deal out of it yourself so he can follow your lead.
6. What are some training methods to get him more bombproof?
7. How do I get him forward and off my leg quickly for a jumping round?
8. How do I bond faster with him?
Faster than what?
9. The girl is selling him by winter, and I need to help him learn some skills so he can be worth more...What are good things to work on with him that you look for in a horse?
I don't get the first comment. Are you taking him on to turn a profit? Sounds like you have your work cut out for you establishing the basics. Also really sounds like you need some good, experienced hands on help, with all these questions. Any good trainers/instructors in your realm?
10. He hates having his ears touched (makes it hard to bridle sometimes), how do I get him over this?
Agree with using 'approach & retreat' as Usandpets described.
And to be difficult as usual...
Ground work shows him that you can control his feet which makes you higher than him in the pecking order and gives you his respect.
Fully agree with groundwork & learning how to be effective with him on the ground first. Agree with teaching him that when you ask, he needs to move his feet. But I don't pay too much heed to 'dominance theories' & don't believe it gives you the horse's respect. It is a necessary *ingredient* of respect, but... a cup of flour don't make a cake. Depending on how you do it, how you're perceived, chasing a horse around on the ground, making him get out of your way can be a good way to ruin any trust or respect. Keeping in mind that you're the teacher, wanting to support your horse & reinforce him for wanting & trying to do as you ask, rather than seeing yourself as The Boss that Must Be Obeyed will help you keep the right mindset.