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A hole is already there. However it’s not correct in shape or angle on the plate. Many have cut the hole and made it work. (Auto is round and I believe angled slight upwards, manual has squared corners and is flat). I actually have a vacuum booster, manual plate I’d sell if you’re interested in it. PM to chat more if you want! unfortunately you’d still need to dig into the dash as you’ll need a few pieces from vacuum setup I don’t have (mainly the rubber boots the vacuum booster push rod goes through).

Get a service manual set for your vehicle. Look at the schematic to see how those lights are powered--assure they're actually getting power and ground. It's possible that all the bulbs have failed, but not likely. I don't know about Lumina, but GM has used tremendously-small light bulbs, soldered into place in their sockets, on other vehicles of about that same model year.

Not an easy job to do........ the entire W body brake system is unique to the W body. No components transfer to or from any other carline. If one wants to convert from ABS to non-abs you're going to find yourself hand fabricating all 4 sets of lines to all 4 corners. The non ABS cars make use of 4 independent brake lines right off the master going to the 4 corners of the car, the ABS system doesn't follow this same procedure. There are 3 main lines off the ABS module, 2 to the front, 1 to the rear where at the back end of the car one will find a proportional splitter to feed the 2 rear calipers. The masters themselves are not interchangeable, one is dedicated for ABS one is dedicated for non ABS. The booster is another hurdle, the vacuum booster can be readily had but what it is fastened to is another story. As I stated in a prior thread one has to go to the effort to remove the heavy plate bracket that is part of the firewall that the ABS system, part of the A/C system & the steering rack column passes thru & go out & find a plate in a non ABS car such as this one in Jiggity's photo shows & pull it out to replace the one in your car. It's not a job for the faint hearted.