ElegantThemes/OptimizePress incompatible?

As a landscape consultant, I need a beautiful, stylish website that mirrors my high aesthetic standards and expertise in teaching clients how to create beautiful, stylish gardens. ElegantThemes ‘Chameleon’ theme would suit this purpose.
I also need an effective opt-in page, squeeze page, sales funnel and sales page, probably OptimizePress.
Except that I’ve just been told I can’t combine the two, because OptimizePress will override my site’s appearance.
Do I have to choose between the two, or is there a better way to resolve the problem?
Advice will be appreciated.