Hi,
First of all, I have done this sort of project before for a website developed by the firm I work for which was a platform for these kind of services (Plumbing, builders, electricians, contractors etc.
Second of all, I've been working for an online marketing agency for about 5 years now a if there was a constant task throughout all these years that would be data base creation of potential clients. It is a great way to grow, make connections and get new business. After doing numerous projects like these I developed certain skills that are a must if you are to find the right people online that can generate business for your activity.
The challenge from your task comes in finding those that do not have websites, but do have email addresses, which I imagine are crucial for you if you are going to use this info to sell your services. Of equal importance is also the phone number, but this should be less of a problem if these professionals provide their services and want to be found online.
1000 genuine entries are a challenge regarding the completion time so I'm not sure about those bids with 2 - 3 days of delivery, that;s why I say 15 days for quality over quantity. But if you shall need it sooner than that we can of course negotiate.
As you can see I wrote an honest proposition and I hope if you get to read it you will appreciate this. Looking forward in hearing from you! I would be honored if you would consider me for the project!
All my best,
Eduard