Hi Chris, I have lots of experience (34 yrs) and will have specific ideas if you can post some pics, or if I could see your barn and its foundation.
I may be in Bethlehem PA this Sunday delivering an Aussie puppy. Three Aussies of mine are already living in your area with their human families. See www.karriaussies.com
Get in touch w me if you'd like to talk about your barn, or post some pics here to get feedback and ideas from lots of people.
Have you built your Pavillion yet?