Wordpress Plugin / Widget & Database

Hey All, I have a spreadsheet with 74,000 records, its a plant database. Site is daylilyfan(dot)com. This is a PremiumPress theme, ComparisonPress. Basically what I need done is: -Database created from spreadsheet. -When someone clicks the Database button on the site, it will display all database items paginated. Bear in mind this needs to be completely seperate from the "Products" currently listed. However, when someone is looking at a specific item from the database, I would like to list any products with the same name as the database items. -A new widget/plugin created, similar to the existing "Daylily Filter Search", where the user will be able to filter through the daylilies in the database. The filter will need to be restrictive. Also the new widget would show on the sidebar instead of Daylily Filter search. -Also, I need the daylily filter search tweaked. Currently you can make impossible selections. For instance, a single daylily cannot be priced in both $1-$2 AND $2-$4, however the user can select both of those options at the same time. So I would like the Daylily Filter Search to remove/disable the other options that would lead to impossible combinations. (I can break this down for you if neeeded). "Features" is the only parent category I would like the user to be able to select multiple options. -Lastly, I would like to have a button, on the Product entry page (Similar to a post), that will Enter information into the product fields, based on this database, formatted in a specific way (I will provide formatting, but it will be similar to the existing two items). -All coding must be done in plugins. So when I upgrade the theme/wordpress, it will be isolated from the them files. -Payment via GAF escrow. -PHP / Wordpress experience required.