ISO...4:10 RING GEAR & PINION for a 489 case

Stock axels in my car so I'm looking for a set of 4:10 gears. I have a 8-3/4" rear end and an extra case and suregrip unit just need a set of gears for a little street play. Must be in good condition and little to no wear. New ones are $275.00 a set for Richmonds so used should run about $100.00 to $140.00.Please let me know what you got. I have a complete 7.25 rear end
housing minus axels. If you wanna work out a trade. I also have 4 14" tires and rims.

Thanks
Hugh