So, almost a month later, I finally had a day off when it wasn't chucking down with rain. Only managed to get the rear end done (RARB, dampers & springs) because of an equipment failure halfway through, and had to wait for the wife to come home so I could use her car to nip to Halfords.
Anyway, thoughts on the install so far:
Doing ANYTHING on your driveway is instantly more difficult than doing the same job on a ramp. Even with axle stands at maximum height there was barely enough room to work.
WD40 is absolutely no match for 5 years' worth of corrosion. Despite soaking and waiting, soaking and waiting, one of the ARB link nuts was so tight that it snapped my spanner rather than loosen. When I replaced the spanner, it was still so tight that the threaded part (which you're supposed to use a spline bit to stabilise) split before the nut budged. Tried to cut it off but whatever they're made from defeated my blades. Had to remove the ARB with one of the links still attached. Luckily I'd planned to replace them so it didn't matter.
The RARB DIY videos and threads say dropping the exhaust is an option. No, it isn't. Without dropping the exhaust there is absolutely no way you'll have enough room to swap it out. I had bought an exhaust hanger removal tool specially for this, but that was useless - on mine the hangers are so close to the spare wheel well that the tool wouldn't fit around them. Fortunately, the rearmost hangers are bolted through to the boot floor, and removing the bolts was easy. That gave just enough play in the exhaust to get the ARB out, and the new one back in. Refitting the bolts was just as easy as taking them out.
Because I'd replaced the ARB as well as dampers and springs, everything was undone. When I came to put it back together, rightly or wrongly, the ARB links were the last part I tightened. Annoyingly, the coils of the Eibach springs are spaced just different enough the the OEM ones that it's virtually impossible to fit any kind of bit into the threaded part to stabilise it as you tighten the nut. So, the nuts are on but I have no way of knowing if they're anywhere close to the 50Nm torque they're supposed to be.
Car is in the bodyshop for a couple of days now having some pre-booked work done, but I hope to finish the front end by the end of this week...