Online software to build landing pages

I need to build an online software that allows the following: 1 Someone signs up the are presented with various designs of landing pages They will have the choice of which design to choose. 2. They go to next step to name the page, the meta keywords , and the description, 3. add headline, sub headline and main copy 4. They go to next step to setup their auto responder (aweber, get response, constant contact) There will be auto responder series that will just be copied and pasted to the auto-responder. This will be a membership site with many up sells going forward I have examples to show. This is to be created to offer a service to marketers that need an easy solution to start building their own email list. I am also interested to build a true sales funnel for them that is plug and play so ou must have experience with this also. Please only bis if you have experience with everything listed.