It is the correct method for a quick simulation, I would recommend to add the via models as well. If you want a more accurate (complex) simulation, you should try a Design Of Experiments (DOE), the ibis models have 3 types of wroking situations (min, typ, max), plus the transmission line has a tolerance (it depends on the vendor, typically ~15%), and if it is a bus, you have also a length variable and aggressors.
I would go with just the ibis (both driver and reciver) and the impedances tolerance (typ, +tolerance, -tolerance), I mean 9 simulations (not that much ), one for each combination. you will get 9 different results, and you are covering more situations.