In answer to your questions:
The funding will not instantly be 50/50 - Hence why I am in search of a business partner.
I don't currently have any holdings but I did run MC Rentals around a year ago, which became very successful until I could no longer fund the business.
I went absent from the land/rental business after closing MC Rentals down as I moved onto working with a few friends at OSGrid.
In relation to your edit: As you can see from the aforementioned answers to your questions, that was written after the closure of MC Rentals, I have since returned and have plenty of time to dedicate to such business.