Hi Eric,
If the optics have been looked after they should be fine, but you would need to look through it or get someone you know to check it out first. My old orange Celestron 8" is 30 years old and the optics are still fine.
The other question would be does the older Meade SCT have a mirror lock to stop mirror flop? I guess you will be imaging with the scope and for long exposures a mirror lock is a must.
All the best.
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