What makes you say repaint? Not originally in that color? Once again, pure ignorance in this area for me.

Also, how did you get the ebay auction info? I have seen that it sold from there and got down to Houston where it sold again late last year, but I've never seen info on price of the sales.
There was no color like that available in 1979 and the ebay auction showed an engine bay in black. How I get this info is I've been tracking 1st Gen Supras for almost 10 years now and get daily alerts on sales around the country (ebay, craiglist, offerup, iaai, etc). When I find one for sale, I put it in a database with info on the car including the original paint codes (6A8 black for this one) along with notes of the sales info. So back in 5/19 this one was on ebay and went into my spreadsheet with a final price of $2000, but I lost track of it until it popped up recently in Houston. Another example of how these cars move around is the Gas Monkey Garage car bought in Wyoming for $4000 back in 2019 and featured on one of their episodes, then put on ebay for $9995 a few months later. That car was last seen on a dealer's lot in South Carolina for $12495 lol.
I would like to think I have documented most of the 1st Gen Supras left in the world at this point, but surprises keep popping up like the Bring A Trailer car recently.
Good luck in your search. If this dealer won't come down to a price you are comfortable with, keep looking. This generation has yet to see the 'Supra Tax' jump in value yet, as witnessed by the $9000 final price for that near perfect car on BaT.