Coursepress theme

Hi there!
I think the coursepress theme has awesome styles, however, I want to use Fixer theme and have a courses site. Is Fixer theme Courespress compatible? How can I use Coursepress css in Fixer theme? And I know this has nothing to do with the question title - but is there any upfront theme that is buddypress compatible? and what in your personal opinion is the best buddypress theme paid and free?
Thanks in advance, have a nice day,