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This would be the one to get as it bolts up the same and has an .062 inlet orifice . ebay vertical spin on filter adaptor
Personally I feel 20% is generous with an .062 orifice restriction , but we have been down that road before . You have a lot of oil going other places especially if you have loose bearings .
I would not be worried about a rock hitting the oil filter , piercing the metal , losing all of your oil , and burning up your motor any more than I would worry about being hit by a meteor .
The advantage of the spin on is you can get a synthetic media filter that will filter far better than the cartridge will ever catch , especially if you use synthetic oil that suspends contaminates instead of letting them settle to the bottom .
Its your tractor and your money , personally I'll stick with the adequate oem system even though I think the spin on's are just cool .