It's all taken in the vein it was intended!
I will be fitting coiler axles, just like Koos did recently (except that I'll be using a Discovery front axle and a disc braked Salisbury on the back). When I do that, I'll be looking at fitting a Discovery front anti-roll bar for the very reason you mention.
I am also considering fitting an LT77 and LT230 - I'm sick of oil leaks from the transmission, and if I retain the 3.54 diffs in the new axles, I'll have higher gearing in top and lower gearing in low range, as well as a transmission that I can worry less about the Tdi engine breaking. It would also help with vehicle dynamics, being full-time 4wd. I already have the gearbox, which is a UK military reconditioned unit with 11 miles on it (the previous owner removed it because he found the gear change difficult - the fact that it had been filled with EP90 is almost certainly the problem).
Anyway. for the moment, it drives very nicely.