Dude sweet ride I luved those bikes.......Upgrading can get crazy expensive.....If the drive train works leave it alone and get some cool aero bar set up....Regardless you will spend far more than the value of that old girl....However if you like it and I do, make it what ya want I ride an old school c-dale with old school stuff but in tri/biathlons who care who needs 11 speeds.....Aero & comfort is the key....If your comfy your gonna be fast....
Kepp us informed.....What is on it now??