Nice conversion. Shows Fantastic Vent installation twards end (and shows how he dealt with sheetmetal creases):
http://www.kodakgallery.com/I.jsp?c=3ohoviv.65kp6qdr&x=0&y=vvcc4s
http://www.kodakgallery.com/I.jsp?c=3ohoviv.65kp6qdr&x=0&y=vvcc4s