I share your pain in choosing between two defenders. I have a 90 PUMA and 300 tdi and now need a new more baby friendly car. 90 is only new (a pre-baby decision) and 300tdi we are attached to because we've had it since new.
Sadly the reality is that the 90 is just not as versatile as the 110 and it does ride like ****.
I think the smart option for you would be to keep the SVX and ditch the 90.
However, even though it is entirely impractical I think I will keep the 90 cause its great fun and then get a D3 for the family :angel:

