The standard, non-magneto suspension is set to be the equivalent of the most firm setting on the magneto suspension, so you may not want to bother, if, as you say, the stiffer the better. The suspension won't be any stiffer if you order the magneto-rheological suspension, you will just get two settings that are softer, and more associated weight.
I can't comment about the LDS, but I did not want it - I too have read too many negative reports about it, and am very happy with linear steering that I know will be predictable, rather than hoping it will be.
I would say the front end lift system is a must, and I do really like the transparent engine bonnet - not much else that I myself would consider as being necessities.


Good luck with your search, and keep us all posted!!!