Been a minute so I'll provide a small update.
We are now moved into our new house. Both of my Audi's were actually the first things moved over, so that was nice. The 4ktd was towed and I drove my other one. We now have just a bit over 2 acres of land, a much larger attached garage, and room/plans to build a separate out building, so TONS of room for activities.
For the first time under my ownership and likely many years, the 4ktd sits outside, and doesnt look too shabby out there. i hopped in the car last week after charging the battery in hopes to see if it would start and run. A few cranks and a bit of help from the go pedal and it came to life. I still have the odd surging idle, but it may just be the idle still needs adjusted up some. Runs great though.
I made a few notes the last time the car ran. Fuel leak from injector #4 where the rubber cap sits over the last port on top of the injector. I cant tell if the actual nipple there is a bit tweaked or the cap just needs a small zip tie. Either way I have another injector to toss in. I need to tighten the turbo oil feed line a bit. The clutch pedal wasnt returning all the way (but it is now), and the brake pedal is still hard. So this means the vacuum pump may not have fixed the hard brake pedal issue. I said screw it and ordered a new master and brake booster. I hope to get this stuff replaced yet this month. The only other oddity was that after letting the car run until the main cooling fan came on, I shut it down, then immediately tried to restart. I got a very slow crank and no start. I suspect the battery, which isnt 2 years old (but had a 2020 date on it) is toast. I've done enough charging and jumping with it
I do owe you guys some updated photos and a video of it starting/running. I also did acquire the correct crank bolt, so I'll take time to replace that. I was really hoping to take this thing to Carlisle (which is this week) but moving sidelined ALL car related activities.
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. I'll check again for sure. The volt meter inside the car showed like it had good voltage but I'll check it at the battery. Alternator is fairly new, not that it matters. 
