Weekend Incorporations

This is a query which relates to the incorporation of a company over the weekend. Please provide me the following information before I use an online service for company formation.

1. If I form a company over the weekend, would the agent be able to register the company that day and send all relevant documents to me on that same day.

2. I would want to have £1000 authorised share capital for the new company. When I apply for an electronic formation, do the application forms generally include a facility for these details to be specified before the application is sent for incorporation? What is the limit of authorised share capital?

3. I would like to use my own registered office address for the company. It is common for online application forms include these details?

4. What are the requirements to open a UK company bank account? Do I need electric copy of incorporation certificate or fully printed one in order to satisfy the bank’s code of practice?

Thank you for the information, I would be grateful to receive a reply and any suggestion you have of which company formation agent I should select.