Build Press List with Editorial Contacts

I need an excel document or google doc of publications (online and print), blogs, and other media outlets that are focused in the event industry (i.e. magazines for event planners and conference planners), and I need editorial contacts for each, preferably a name, email, and phone number which I will use to reach out directly regarding a new product they may be interested in covering. I already have a list of 31 press outlets started so first would be finding the contacts at these publications, then finding more publications and their contact information. I would like to reach 75 publications by the end of this weekend, with at least 50 having direct contact information - they can be in different countries but should be mostly focused on the US. I estimate this should take about 10 hours, but am open to suggestions of how long it will take / how much it will cost if you have unique qualifications for the job. Otherwise I would like to start with a fixed budget of $150 for about 10 hours of work. This could DEFINITELY lead to work in the future. Thanks for looking!