I recapped the ECU on my 92 F150 late last year. In yours, I don't see the 63v 10µF cap that blew its guts all over the PCB that I had to replace. Said F150 uses the 5.0L EFI engine--the ECU can't be that different in the space of a year. Initially, I put a large 10µF 100V film cap in, but thought better of it and just used a 200V 10 µF quality electrolytic. Not that the film cap wouldn't have worked, but it's much more massive than the electrolytic and my fear was that too many rough roads might lead to circuit board damage.
The worst part of the job was getting the ECU out of the firewall. You have to remove, or at last partially detach the wheel well shroud and then be double-jointed to squeeze a socket wrench in to free the clamping bracket. Fortunately, I have a battery-powered ratchet that made easier work of the job. That thing was a lifesaver; it made replacing the TPS a lot easier as well.