There really isn't a consensus as to how to compute collinearity diagnostics for complex survey data. Some suggest that you simply use Proc REG with a WEIGHT statement and the COLLIN and VIF options on the MODEL statement since collinearity affects only the independent variables. Others suggest that you compute a model-based VIF, etc. that includes the design effect. One such paper that discusses this, and that you could program yourself, is linked below.
Variance inflation factors in the analysis of complex survey data (statcan.gc.ca)
... View more
