[PA318Guy]

I would take that to a local metal shop and I'd bet for $75 - $125 they fix you right up. A 48 inch replacement used is going to go $500 and a used 50 inch deck will run you $250 - $450 depending on condition. The 50 inch deck has an amazing cut the 48 inch deck is good but not like the 50 inch deck!

 

[PA318Guy]

Yes unfortunately with the opening on the discharge there any bump on the housing at that point tends to push it back and the blade will grab it pretty quick! Your idea sound about as good as any I've heard and I just normally take one of my persuaders out and put things back in place!