buddypress and a non-compatible theme

Hi support!
I wonder wether you'd help me:
I have a theme that fits my needs very well, except the buddypress compatibility. I've already made the modifications bp-theme-compatibility-plugin.
However, the site
and the corresponding one's would look better, it there were a frame, like in the other templates/pages.
Any hint, what I still could do, to make it look perfect like the other pages?
I also considered to use a different theme, however, I'd need one with woocommerce-compatibility, I want the slider on the home page, I want no sidebars ever, I want my 4 footer-widgets.
Courious, Thomas