468495 Online form with payment option. Can use any open-source

Hi all. I have a nice little bit of PHP programming for someone. The forms i need customizing is these: [login to view URL] [login to view URL] Both will be 90% the same and so can be cloned once one site is complete. I would like the form customizing so that customers can pay online if they choose to. This will not be required but i will offer a discount if they do. Payment will be secure and will be linked to my merchant account if possible. Paypal can also be an option for payment (paypal business account already established). I also want to stop any booking being made within 7 days of the tour time. The same will apply to both websites. You may use the current script or use your own or other open-source script. Whichever is easiest for you. If the project is completed satisfactory i have another project for this website [login to view URL] which will be a little more complicated as a backend will be needed to record telephone booking and remove them from availability. This is not the case with the current two websites as they are tentative bookings. These businesses are too fluid to do such a booking system which is why i simply use the emailed form and a calender. I am open to ideas though. I look forward to working with you, Regards, Rich