need replacement bedroom escape window

thanks all for the thoughts. yes we DO like the window and would like to replace with something resembling the original..as for the temporary 'fix' for this weekend i'm good there i think......the real question is am i going to have to replace the ENTIRE window frame and all......or will i be able to find a replacement somewhere...so far the few salvage yards i've called have not been helpful.....by the way the camper in question is a 2002 montana fifth wheel 2955rl.....not new...but not so old that i shouldn't be able to find one to fit.....having said that i've had to do a major search for just door latches on the outside doors because this model/year had an 'odd' size on it......problem solved there....anyway.....any other thoughts appreciated........still looking/pondering here........i MIGHT go and have a glass made....work up a frame somehow.......put on a piano hinge and make my OWN DANG window.....laffs.....dad nab it....mumbles something about dang freaking houses on wheels.......gotta love it right?
gary