Im thinking that the top on is a 505 SP
If you are handy with the tin work you could make your own mulch plug up out of 1mm or 1.5mm steel. I was thinking of messing with a few of the mowers i have here, ive got some rusty bases i can cut up to get the curved parts.
If you flip the mower over you just want to make it like its a bowl.
They dont have much arch so so i doubt you would have to fill that void as it sweeps up.
Just not sure how you would hold it in. I suppose one bolt hole drilled in the base would not hurt.
Same deal, a catcher could be made or bought and modified to fit that. The old side throw rovers had catchers, clipped on the mower and had an outbound wheel. My grandfather had a similar type catcher on his Cox ride on.
Cheers, Bob.
