"My room is small and probably not ideal for acoustics. "
Few rooms are. We all have rooms that are not perfect. That said, I see nothing about your room that should pose any major issues. If a problem does arise, it can be fixed acoustically without spending a lot of money.
"I hadn't considered a separate 2 channel pre due to cost, but now I am intrigued. "
Here's a good article on the subject that goes into a bit more detail. It starts on page 4.