[Dave55]

I just searched flea bay, nothing

I think I would make one of those
Flat cover with a flange down to the side of the tiller, not to hard to make.

 

[PA318Guy]

You have any lawn mower salvage yards around you anywhere? Might be worth a trip on a warmer day!

 

[dave_r]

There's a guy on Kijiji that's parting out a bunch of tractors & engines, as well as some used JD flippers, they might have what you want.