Please see the below listings on eBay for the sale of sealed vintage TDK MA-XG60 and SA-XG90.
Also for sale are sony walkmans d6c, ex-20 and 701c.
Thank you

ma-xg60 item # 160278991462
sa-xg90 item # 160278992158

d6c item # 160278971011
ex-20 item # 160278983890
701c item # 160278987962