It only needs 3 gallons a minute. A standard 3rd function is connected to the power beyond; I would think that it would do it. It is possible that you would need to use oversized hoses and/or connectors, but they show it working on some more compact tractors with smaller hydraulic pumps.
If it would work you (you said it would not), you could always contact the company for more information about requirements and plumbing.
You might want to give it a second look; your LX is not going to leave you with many options.
You could simply mount a push mower (or some other self powered mower - the kind ATVs pull around) to the side of the bucket with arms/hinges allowing it to float or a straight bar mounted on the bucket extending out to the side - joking, but also serious.
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