I don't see any way your idea of a tall tire and shorter shocks will work. If you do come across some 195/70 tires though, I'd be interested. Post them up. The closest I've been able to come across is 195/65.
In a recent query to find a replacement for my Austone Taxi Tire, all of these have been suggested.
The Maxxis 175r16
The Zeetex CT-1000 LTT, 42 psi.
The Champiro VP1 and
The Firestone Transforce CV in 195/75R 16C
I am seriously considering the Zeetex but, none of those seem to fit what you're looking for. The Firestone seems the closest.
Rams