I used to buy some of my running stuff from RoadRunnerSports. Course that was pre-computer days (
how did I ever live) but they do have a website:
roadrunnersports.com.
Depending on your height have you looked into kids tights? They may be work better for you regarding the length.
Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, champagne in one hand, strawberries in the other, body thoroughly used up, totally worn out and screaming: "Yeah Baby! What a Ride!"