Is there any software out there that is reasonably priced that allows you to customize a proposal that is sent to a customer via email? Specifically, I want to be able to send a customer a quote for around 5 different services. I would like the customer to be able to choose which services they want by checking the box next to the service they want. Then it will add the total of all the services and the customer can then accept the proposal which will send a notification to me of which services they selected. I have been looking around for a while, but can't seem to find anything like it.