Flying with my wakeboard

I know I've seen threads on this but just wondering:

1. American airlines says "Checked baggage which is larger than 62 in/157 cm will be charged at the rate of $150 per piece." so will my 142cm wakeboard be okay/under that?

2. Do i need a bag for it?...or just slap the sticker on and send her off?

3. I was thinking about sending it UPS but I donno if it will be there in time

What would everyone recommend.
Thanks!