I am in a multi site setup in which my customers can create their own web site which is basically a listing of yachts. (main: http://mycharteryacht.com/ customer: http://rico.mycharteryacht.com) I would like to keep the client sites as clean and simple as possible. I would also like to create a mobile application from the client sites. Currently I am using the fluida theme but it is not flexible enough as I can not change some settings like getting rid of headers.
What would be the recommended way for me to go forward? Should I use a plain version of upfront? All I need for now are category listings with filters and detail listings with contact forms but I would like to stay flexible as I probably need to modify pages for different customers. As mentioned above, the customer sites should be easily converted into mobile apps and also integrated as iframes into client sites.
Thank you very much for your help.