'Will not accept adapter' refers to it not accepting the 'universal nova' adapters.(a very large thread)
It will indeed accept a 1-8 to 5/8 plain adapter.
I suggest thee inform us as to the source of the bargain so we can verify we are talking about the same thing.
Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E(SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange