I don't know if anyone is still looking at this particular thread...but I just saw it ...and I believe that you bought that piece from me at a LI JP's Show. I actually originally purchased all the Bleachers that came out of Shea ..there are many of them out there now...but I love to see what people do with them. I still make benches out of them and have done a number of different leg options. I never did a Back to the benches, as they didn't have backs at Shea...But I think your Bat Back is pretty cool. I'll attach some pics of mine below and you can go to my site to check out my latest.
www.sheamemorabilia.com