Cool if you want to upgrade it, but sounds like you've got a pretty solid truck to start, at least you know it's history.
I would say definately plugs and clean or even replace fuel injectors.
As has been said, do an oil change, and drain it after 1k miles and see how it looks. If black, keep using shorter than normal intervals.
Transmission fluid change and filter.
Belt, hoses, pcv valve, coolant changes, etc.
She will be back to her glory before you know it, and if you still want to take her to the next step, go for it.
Condolences on your loss, and best wishes for whatever path you choose. Happy Ramming!