Hello,
I'm a certified Google Adwords partner in Canada, and I'm also very experienced with Bing Ads.
Before going into the details, it would be very helpful for me to know more about the details about the project. $45000 is way more than what I'd charge for building Adwords campaign unless there are thousands of ads that need to be manually created.
Also, $1000 daily budget is not unsignification. As a result, I'd highly recommend you talking with your technical support people to make sure your website servers are ready for huge volume of traffics. Also, getting content deliver network services like CloudFlare will also be very beneficial to you.
Another thing I'd like to recommend is that, even if you are not interested in Facebook Ads, Twitter ads, linkedin ads etc. at this moment, please DO setup the remarketing tracking on your site, which will help you gather valuable customer data for remarketing at a later point.
Please feel free to contact me if you are interested in further discussion.
Thanks!