Where to find a Buick Roadmaster transmission cooling line

My appoligies if this has been asked already.I have a 1993 Buick Roadmaster Limited and with much frustration,haven't been able to find a transmission cooling line.I recently replaced the idlerarm and accidently cracked the line at the fitting.I called a dealership and was told that the part was discontinued.I have been looking online but,the closest I get is for the fitting and not the whole line.If someone has a link that I can click on for this part it would be very much appreciated.Need more coffee me thinks..lol
Thank you for the help,
Andrew

You may need a tubing cutter, flaring tool & bender to cut & form a short piece of 5/16 in tubing; otherwise, you could get a compression fitting with a hose barb and run a rubber (transmission fluid) type hose to the trans. Be sure to use "hose barb" type fittings with clamps, if you use the rubber hose!