Really appreciate these replies. A couple of follow up comments and questions.....
1) if I build a platform (~3 inches) and put insulation on the ceiling (~2 inches?), I've now got a low ceiling for Press,and full lockout can't happen whenever I get to 45s. What's the solution? It may not even be enough clearance for 25s and change.
2) the dryer vent is ~7 ft from the ceiling (straight up) and ~14ft from an outside facing wall. I'm not sure how I can run a dryer vent like Oso recommended... Wouldn't the long length cause issues, like clogging of the 'hose/line'?
3) if we didn't run the dryer, on a normal day, it probably gets to 130 degrees. But I am not working out lost days at that time of day, so it doesn't matter much. With the dryer, of course it is even worse. I'm wondering if I can create some shade on the roof to assist.