Hard to compare 1990 vs. 2011+ measurements. Was the 1990 at your heaviest? day of contest, cold, etc... Most people's measurments would vary quite a bit from on to off season so it would be good to keep as consistent as possible. In fact, measurements are only a small part of the equation... One might have arms 10 years ago that have the same diameter but look better now - even at similar bodyfat. This is more so the case for legs. At least as for myself personally since bodyfat has stored much different even in the last few years as I approach mid 30s. I think you should be able to get to your 1990 level of physique, if not better. You should have muscle maturity on your side - even after the long break in between.