Smollett

Does anyone know how to get either a complete replacement remote control fob for a 1990 5.0 or a replacement plastic case for the remote electronics? I have searched high and low for either because my two factory issued, dealer installed remotes are falling apart and need a lot of massaging to work. Unfortunately, Ford made the factory alarm system disable the starting circuit after about a minute. Thus, if my remote does not work, the car will not start.

The remotes have only two buttons, lock and unlock and the unlock feature, with luck, will unlock the trunk if depressed long enough.

Ideas?

Thanks for any assistance.