Well...
I know Sloth has been under one doing brake lines last weekend ;) I've also done them before and have the flare tool to do Kunifer pipe, which you are welcome to borrow if you like.
Track rod/Drag link - the 'long' end is crimped into the tube, and non replaceable on it's own, so it's easier (and cheaper) to just replace the whole rod. I recommend getting new lock nuts for the ends, as they can seize on the threads as they come off, and it's so much nicer reassembling it all with nice new parts!
Ball joints... can be a PITA to get bits apart, especially if they hubs have never been apart before. But the actual ball joints themselves are easy to do with the correct tools... I have the press tool to get joints in/out, and again, welcome to borrow it if you like.
When you do them, again, get new nuts - and buy genuine Lemforder ball joints. The workshop manual says that you can only change them 3 times, before the axle casing is oversize... and I wouldn't want to waste one attempt on cheap Britpart joints that will probably fail in 6 months...
Welcome to the joys of P38 ownership... the dirty side! But once they're done, it will probably feel like a new car to drive... if that's any consolation!
If you want either the brake flare tool, or ball joint press tool, then drop me a message... I could be persuaded into helping do them - have done 5 or 6 before, but the novelty has somewhat worn off a bit - especially when the last one I did was in the cold, and it was raining!! haha fun times...
EDIT:
And yes, they are both jobs that can be done on the driveway. Brake pipes aren't as bad as it sounds - threading it in can be a bit tricky, but the flare tool that I use means you can do the flares on the vehicle, with the pipe in place.
With it up on axle stands, and the wheels off/arch liners out it's not too bad to do... just have a pair of safety glasses on for all the dust that falls off whilst you're under there!
'06 4.2 Supercharged Black/Cream "Jess" -- Bought April 2021 (NZ)
'01 4.6 Vogue Black/Lightstone "Snog" -- Bought Jan 2012
'99 4.6 HSE Cobar Blue/Lightstone -- Sold March 2009
'95 4.6 HSE Epsom Green/Tan -- Traded June 2008