I think I read in the pass on this site, that some people have brought 28" wiper blades at much lower cost than the 32" blades...if this is correct where did you get the blades at?
My MH had the large "J" hook on the arm, blades were $45 bucks each. These blades with the large frames would lift off the glass in high winds. So I went to the junk yard and got some arms off a ford pickup. Cut the last 3" off these and the MH arms. Welded the smaller "J" hook to the larger arm. Now I buy frame less blades for $10 at wally world.