Yup Don, the 2980 is history. The 3075 is a close replacement and it is 34' 8". Another choice is the 3150 at 34' 5". Here is a link to the Keystone Montana spec sheet. Hover the mouse over the little floor plan icons at the bottom of column and and a larger image of the floor plan will pop up.
http://www.keystone-montana.com/index.php?page=specs
Are you looking looking or just kicking tires?