thats a rancher 2 some dozer bledes and catchers were also made by Lloyds GTA but i dont think you will find one might be better to get out the welder and make one like Greenfield type.
Cliff,
I have located the parts list for the Rancher 2 which shows the dozer blade breakdown as well as a spray pump kit that could be used for your ride on.
We will scan the parts list and upload it by next week to the parts list and manuals area.