Wayne, 
Thanks for another legendary-ily (new word?) helpful post.
In answer to your queries:
Coils are same diameter. They just have the closer windings at one end.
Mine is a 1994 300 TDI – so I’d be in a worse boat than you regarding driveshafts. 

I agree with you 100% on unstable vehicles, I have seen plenty of the Niss-ota brigade driving around with their arse permanently clenched in a 6” lifted truck, which always seems to want to fall over... Stuff that for a joke. 
I recon your 110 looks the bee’s knees, and I do appreciate (even more over the last few days) the work and research you have put into it. I can see that 3” is not a record breaking lift for a 110, but getting a lift that height that works is well worth mentioning. 
My 110 either sits in the drive (99% of the time it seems 

 ), goes for a boys weekend (ewww -  I’ll say ‘camping and 4WD weekend’ in future), or drives for 6-7 hours in any given direction to visit someone. It does not get used every day, but it does get used on longer trips – so having something good on road is still important to me. 
I realise now that my initial thought of getting a ‘really soft’ 3” lift (expecting 2 and a bit inches – as opposed to asking for 2” and getting 1” or 3” rock hard) was very silly – I should have been more clear with what I wanted.. In a way getting the wrong coils sold to me (yes – I am saying that now 

 ) has been a good and timely eye-opener.
I have air lockers - and with them, nearly std height suspension, the worlds skinniest tyres and 8” travel shocks I haven’t really missed out on anything.  So I figure my money is better spent on a setup that can cycle through, say,  a 10” shock (common size), and gives me clearance for some larger tyres down the track. This means a lower ride height, picking some better lines, but still being able to articulate the wheels enough to get some good stability. The lower height (say 2” or 2.5” above std) will mean I can save the radius /rear arm and bushes $$ for other bits and bobs (and my upcoming trip north)  later on. 
I know this had been the ‘traditional’ line of thought forever – I’m slow OK! 
I notice Rick130 has a front BSC of about 120mm (down a bit on that now), and seems to think this is a good compromise. I have just jacked my front up to this height, and it sits level, looks good, and will work fine I believe. This is about 2.3” above factory.  If I can get my front clearance to this, or even100mm, I will be happy. Researching the coils that will do this for me now (LRA purple I think?)
Just sweating on British Offroad ‘s (yes I will say it now 

 ) response, to see what my options are.
Bookmarks