Create a custom plugin that integrates with wp-invoice

IF YOU DO NOT KNOW PHP AT LEVEL OF AT LEAST 9/10 DO NOT BID PLEASE [login to view URL] 1- link the buttons on that page (above) to woocommerce checkout so payment can be made using paypal or payfast 2-When a user is registered on woocomerce by buying one of the packages on that page, you should make a plugin that can automatically re-send the same invoice every month or at an intervall of days i can specify 3- Make a file that i can run as a cron job daily to see which new invoices generated for the month have not been paid yet and send out automatic reminders every week/or at an interval I specify in days 4-the invoices sent out should be pdf, alternatively you can use this plugin to make them pdf's [login to view URL] 5-I should be able to also manually create customers and send out invoices from the backend with your plugin and set if they are recuring or if they are once off. 6-A simple dashboard showing which invoices were sent and whats outstanding would be a nice to have 7- I must be able to also manually mark an invoice as paid in case a client does a manual payment