These off Gibsons aren't going to sell at those prices. The sellers will find that out eventually. Most of the 90s and older Gibsons on eBay and Reverb are overpriced, you can tell b/c so have been there a long time and/or relisted.
I bought my slothead EB-0 for under $900 last December. It had been listed at $1295 (IIRC) for 2 years! Seller reduced the price and I made an offer below that. And you think your beat up "custom custom" Q80 will sell at $1199? Dream on, pal, or hope for an ignorant buyer.