Tractor Repair: Power steering, steering conversion, spool valve

Question
QUESTION: Does anyone know where I can find a power steering conversion kit for a Case 440 tractor?

ANSWER: HI DUANE ,
HAVE YOU TRIED THE WWW-- EBAY--JUST TYPE IN CASE 440 AND SEARCH.
MARTIN

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QUESTION: any other ideas - there is nothing on eBay

Answer
Hi Duane.
I am wondering if there was any available by the makers?
How ever I did see one arrangement on another tractor some time ago were the owner had used the oil pressure from the main hydraulics driving the power steering ram at the front ,using a spool valve, there is nothing special about the ram . you could passable obtain one from a larger Case or any model. and adapt it!

Or may be any oil pump could passably be used .