The Classic 8 was introduced in the early 90s and replaced by the Celestar 8 in the mid 90s. It is a equatorial fork-mounted telescope. The base of the fork mount attaches to a wedge, which is set according to your latitude, and together, the two compensate for the Earth's rotation. The wedge is attached to a tripod.
It sounds like you only have a tripod problem.
If that is correct, the Classic 8 fork mount and wedge will attach to any Celestron 8" SCT tripod from the 70s (orange tube), through the end of the 90s, right up to the advent of the first Nexstar goto scopes. The fork will also attach to a Celestar Wedgepod (a tripod with an integral wedge). The Classic 8 wedge will also attach to the standard Meade field tripod for pre-goto Meade scopes, provided you remove the center pin.
Alternatively, if you "defork" the Classic 8 OTA (optical tube assembly) and add a Vixen dovetail bar, you can use the Classic 8 optical tube on the current Evolution and Nexstar 6/8 SE mounts, or any mount that accepts a vixen dovetail, including the Celestron AVX and many other GEM mounts. A "D"/Losmandy (or what Celestron calls "CGE") dovetail allows you to mount the OTA on many larger GEMs.
My Classic 8 tripod was relegated to the scrap pile long ago and replaced by a Meade field tripod.