Welcome, sounds like a good start to a project.
The engines are all the same to 95, then they
went 16Valve, blocks are teh same, heads are
different.
Change the engine coolant sensor and the intake air
temp sensor, I have found different values on 2 different
intake manifolds I have, just keep the old sensors
with the old computer and you should be good.
a chhep way to get the 31s to fit would be a body lift,
around $150 if I remember from Calmini, they advertise
here, just click on their banner when you see it, or go to
www.puresuzuki.com
Welcome again
Wild