I don’t think so, I’m in a similar position. I have the same size in aluminum from Solas, they were my spares before repowering. I was going to list for $300 for the set as they’re brand new. Your SS props look perfect, I think it just comes down to if someone has hit a rock lately or not.
ive been trying to sell a set of yamaha ss props for a while now, also at $500 with no luck. that being said, mine are 23' pitch, so that is probably working against me. good luck