198 for the red: https://www.amazon.com/Wiha-92190-Master-Technicians-Bench/dp/B000T9XZFO

'A couple hundred dollars' for tools in a production environment??? The precision drivers I would recommend would blow your budget. Don't cut yourself short on tools. Get a realistic budget for tools and prioritize. I count on my tools to be the final word- I can't afford to be second-guessing my testing tools or mangling equipment because of poor-quality tools.

That's a good kit. It's becoming pretty popular because a lot of "how do i fix this searches" end up pointing to ifixit; plus, it's affordable. I have both of these sets (1 - 2).

1 stays at home on top of a work bench.

2 stays in a bag that rides in my truck. I probably use the power driver in #2 more than I use any of the hand drivers from #1.

The only thing I don't have in these kits are pentalobes, but I can't even buy an iphone screen without being sent pentalobe drivers and shitty openers.

If you want an all around set I highly recommend Wiha brand. If I was going to take stuff apart all day I would have one of these on my desk.

Snap-On ratchets run around $100 each, as does a set of sockets. Going with something like a 3/8 or 1/4 80-tooth ratchet (FHL80 and F80 are two of the classic snapon designs) and an SAE and Metric set of sockets will be a GREAT gift that lasts a LONG TIME. This will sound weird, but Pawn Shops are a great place to get Snap-On stuff. I know it is strange giving a used item as a gift but it isn't uncommon because these things are such high quality. Or you can buy one part new (like the ratchet) and get a few sets of sockets from the pawn shop or visa versa. Look on ebay and local pawn shops to see what deals you can find to give him the most impressive gift possible.

For screwdrivers you can go with this Wera Kraftform Laser Tip or this, Wera Kraftform Chisel Tip or this Proto Duratek set. Now obviously, you can go smaller sets to save money or larger sets to cover more options. I have the Wera Laser Tips set that I mentioned and it is quite nice. The screwdrivers are excellent quality as I mentioned before. The Chisel Tips don't have the laser cut on the tips, but they have a MUCH harder screwdriver. They are designed to be pounded on with a HAMMER! Either of the two Wera kits covers everything you need for larger screwdrivers other than JIS screws (which are only necessary if he works on Japanese vehicles or motorcycles).

For precision Wiha makes great precision stuff. There is the classic big kit, flat version or benchtop version, which is pricey but has pretty much EVERY precision screw driver and small nut driver he could need (other than proprietary ones or security ones, but those you get on an as needed basis anyways). There is also this one, which I own. It isn't quite as nice as the previous kit, but it still is really damn nice with a very well made metal case and the quality of the tips is excellent.

A good multimeter like a Greenlee DM-510A (rebadged Brymen BM257S iirc) will do well for him (often goes on sale for around $110-130). Otherwise, a Fluke 87V will run around $150(if lucky)-$250 used on ebay in excellent condition. The Fluke 87V is the classic high-quality multimeter. A third option is the Brymen BM869S, which you can get from TME.eu in Europe for around $240. This thing is an amazing meter (it is by far my favorite meter) but Brymen doesn't have the name recognition that Fluke has so it might not be the best for a gift.

You can pick and choose from these options to maximize your gift impact. As for the design of the garage, I'm a bad example. I keep a small limited amount of quality stuff, because I move around a lot. You can snoop around on the forums at GarageJournal. You will encounter a LOT of garages that will help you get ideas in your mind. You can ask questions there as well if you are having trouble.