Why don’t you just spend the $100 on new fob batteries and have the system reprogrammed? It’s an option you’ll wonder how you got along without if you ever get used to using it. I don’t know what it takes on a Toyota that age, but I’d guess it’s something any good shop or locksmith could do.
Fords are easy. You just turn the key off and on a few times (I think it differs with the year.) until the locks cycle down and up. Then you hit a fob button to program one or more fobs.