Well I can see your DF site now, which helps - but do you have an example non-DF site that shows how you want the site to look? Then I might be able to tell you if possible in DF.
You have Content which allows HTML already, but you can go "lower" than that if you wish. Download the Home module from here and take a look at it. It is very small. That is intended to place a splash page in Home, but it will show you how little "overhead" you need for a minimal DF page. Then you can do whatever you want with your own HTML/code generation/Dreamweaver or whatever.
I build all the non-specific pages (ie. other than Forum, Photo Gallery, Store, etc.) for my sites with Pro_News. But then I would

. But you may want to consider using DF modules for all the basic stuff and then use you own code for the truly special parts.
I do appreciate your "I have to train others to maintain" comment. I build almost all my sites with that in mind from the outset. I've found that by keeping the Admin interface uniform (thru' Pro_News) I can train up an admin in a couple of hours - often less.