Like many others, KBDL is my favorite airport, having spent 100's of hours over eight years (while I lived we lived in Enfield 10 years ago) with my young son observing flight ops. Now living in Orlando, when it was up, I listened almost daily.
There are two FBO's at KBDL, TAC Air and Signature Flight Support. I've written to both of them, asking if they would consider hosting a listening post, but have had no response.
Perhaps someone in the area could also check with some of the other businesses in and around the airport (and there are many) such as Canadair. Also, another possibility might be the New England Air Museum (
http://www.neam.org/).
I'd do it myself in a heartbeat, but I'm a tad too far for that.