Before we built the barn you sent me a message about, we were going to have a Horizon Structures modular barn pre-built and put together in 3 days. We ran into problems with our county and couldn't find a level enough piece of land that wasn't really far from the house to put it on, so we went with the bank barn.
Here's the Horizon Structure site: Monitor Style Modular Barn
They're all amish built and made very well. We drove up to see them 3x and were totally sold on them
We were going to get the Monitor:
It was 24x36 with 3 stalls and a wash stall (or tack room, whichever we wanted). The only thing that wasn't appealing to us was the small 1/2 hayloft and the stairs up to it. Unless you have a hay elevator that's going to be a PAIN to load up!
That barn was about $36,000. And well worth it IMO.
What kind of barn are interested in? A center aisle, shedrow? Do you just want 2 stalls or do you want a tack room?
Horizons also has nice shedrows in different sizes :) Check 'em out! They are very easy to work with and can pretty much design anything you want.