Using Optimize Press for pages...now want to add blog -- problems

Hi,

I'm hoping you have a solution for me.

Currently, one of my sites serves as a place to serve up
download pages, thank you pages, and the like. It uses
Optimize Press. All is good.

However, all that is stored on a domain that I now want
to focus on, build a blog there, etc. This is where the
trouble starts.

I need to install a new theme for the blog
This, of course, changes everything for the pages I made
in OP. The style of the blog theme is not a good match for
those pages.

All of those pages are live, with downloads and opt-ins
happening daily. I can't move them and screw up the
links.

As I see my options...

1. I can do a re-direct from the .com home page to a
new WP install in a sub-domain. All I lose is that the
home page won't read ".com."

2. I could use WP-Twin to clone the existing install, load
it up in a sub-domain/directory...and then...do re-directs
on the 15-20 pages now there. That saves the links and
I get to use the ".com" as the home page.

That's all I can think of. I'm open to other ideas, and
appreciate the help.

Best to you.

Jerry