How about I sell you a good t5 to put in the ol gal? $200 and she's yours.
Seriously, though. I'm not sure what the lines look like. Are they steel lines all the way from the tranny to the cooler? I'm not sure I would go with rubber. I believe they are steel for a reason. But anyway, here's a couple options for you. You can take one of the lines in to the parts store and see if they have the materials for you to bend your own. If they are flared ends, you may have to buy/borrow/rent a flaring kit. You can also take the line in to a specialty shop that makes hoses. They should be able to fix you right up. Or...maybe check and see if the lines are available as reproduction parts? Rock Auto, ebay, LMR, etc. might carry it. Another idea is to make you some flexible hoses (possibly braided hoses) using AN fittings. Most people use them to make braided steel hoses, but we use them at work with reinforced rubber-type hoses that are rated for diesel fuel, lube oil, or whatever. If you go with something like that, just make sure the material is compatible with tranny fluid and make sure the pressure doesn't exceed it's rating.