Starter cords dangling out. You have said PT starters can fetch more than the whole mower. Some might just need to be cleaned and lubricated but you can't tell until you pull them apart.
Even without that issue, he should halve the price at least. He obviously needs to get them off his hands as he runs a storage facility and trades in SPACE not junk ( to him).
He can keep chasing rainbows of he likes or he can let someone get them off his hands at an attractive price.

Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!