Ford oil cooler in Victoria, British Columbia for sale

Ford oil cooler off a 97 mustang 4.6 2v.
Will fit 5.4L and 4.6L engines.
I ran synthetic motor oil and learned the hard way your not supposed to run synthetic oil in an older engine, because the engine will leak oil in places it never leaked oil before.
Well you guessed it, the synthetic leaked past the oil ring and into the coolant.
I priced out a new Ford oil cooler and almost died of shock, (around $800) then ended up getting an adapter to replace the cooler.
So after getting my car back on the road I did some google search and found out I could have had the shop take apart the oil cooler housing, clean it out and put it back on the car with an oil change and a rad flush. But its too late now.
So to sum it up, with ordinary oil this oil cooler works fine.
May trade for why.
Pic from the net for reference.
UPDATE:
I got a friendly email informing me, "These coolers can be resealed with new viton o rings and reassembled and will work with synthetic oil."
I already spent the money to have the car fixed. I have no shop or any place to work on my car so I'll just keep it the way it is and give somebody a good deal on this Oil Cooler.
Thanks for the info. Have a great day.
Offers or trades.
Looking for:
:One or more 2"inch or 3"inch steel ball bearing,
:Working vehicle alternator, any make.
: Spindle sander.