From my understanding it will be quite expensive to have OEM power installed.
transmitter is $144.23 each
lock actuator is $44.75 to $74.60 each depending on the door
keyless control module is $89.57 each
window regulator is $81.31 each
window relay is $16.47 each
window motor is $244.51 Need one for each window
Don't know the price of the new wire harnesses, but you'll need one for each door too.
Then there is, "Well, now that I have power windows and locks, now I want power mirrors. And I kinda like the idea lit mirrors behind the sun visors too. Um, how much for leather?"
My opinion is to trade up for an SE or LE, or go with aftermarket parts. I went aftermarket. When I bought the truck, I honestly didn't expect to drive it as much as I do. So now that I drive it 3 days a week, I really wanted the power package.
Check
www.a1electric.com. Great prices and service.
Oh yeah, if the power door locks are installed properly, they will not fail. I'd find another shop, or do it yourself.