Firstly, direct arbitrage, such as putting up an ad for amazon and then posting your referral ID as the destination URL is against Adwords TOS and will get your account banned. Secondly, amazon cookies only last a day so it would be a waste of money. At least I imagine so, maybe if you were very clever about your keywords and targeted high priced items it would work.

At the very least you need a landing page which then contains the link to the related products. (or put in the links and CS at the same time).

3rd. If you are just starting out with arbitrage you are playing with fire. Start out with 5$ a day campaigns until you understand how adwords works.